Claims for Patent: 8,362,002

Summary for Patent: 8,362,002

Title:	Azetidines as MEK inhibitors for the treatment of proliferative diseases
Abstract:	Disclosed are compounds of Formula (I) and pharmaceutically acceptable salts and solvates thereof. Such compounds are MEK inhibitors and are useful in the treatment of proliferative diseases, such as cancer. Also disclosed are pharmaceutical compositions containing such compounds as well as methods of using the compounds and compositions of the invention in the treatment of cancer.
Inventor(s):	Naing Aay, Neel Kumar Anand, Charles M. Blazey, Owen Joseph Bowles, Joerg Bussenius, Simona Costanzo, Jeffry Kimo Curtis, Steven Charles Defina, Larisa Dubenko, Anagha Abhijit Joshi, Abigail R. Kennedy, Angie Inyoung Kim, Elena S. Koltun, Jean-Claire Limun Manalo, Csaba J. Peto, Kenneth D. Rice, Tsze H. Tsang
Assignee:	Exelixis Inc
Application Number:	US13/048,832
Patent Claims:	1. A method of treating a disease, wherein treating means inhibiting the disease, and wherein the disease is a cancer selected from melanoma, colorectal cancer, pancreatic cancer, breast cancer, non-small cell lung cancer, small cell lung cancer, papillary and anaplastic thyroid cancer, endometrial cancer, and ovarian cancer, comprising administering to a patient a therapeutically effective amount of a compound of formula I, or a single stereoisomer or mixture of stereoisomers thereof and optionally as a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula I, or a single stereoisomer or mixture of stereoisomers thereof and optionally as a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, excipient, or diluent, wherein the compound of formula I is: or wherein A, X, R1, R2, R3, R4, R5, R6, and R7 are as defined in Group A, Group B, Group C, or Group D: Group A: A is phenylene optionally substituted with one, two, three or four groups selected from R10, R12, R14, and R16 where R10, R12, R14 and R16 are independently hydrogen, alkyl, alkenyl, alkynyl, halo, haloalkoxy, hydroxy, alkoxy, amino, alkylamino, dialkylamino, haloalkyl, —NHS(O)2R8, —CN, —C(O)R8, —C(O)OR8, —C(O)NR8R8′ and —NR8C(O)R8′; X is alkyl, halo, haloalkyl, or haloalkoxy; R1, R2, R3, R4, R5 and R6 are independently hydrogen, halo, nitro, —NR8R8′, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —N R8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl; where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or one of R1 and R2 together with the carbon to which they are attached, R3 and R4 together with the carbon to which they are attached, and R5 and R6 together with the carbon to which they are attached form C(O) or C(═NOH); m is 0, 1, or 2; R7 is hydrogen, halo or alkyl; R8, R8′ and R8″ are independently selected from hydrogen, hydroxy, optionally substituted alkoxy, alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl; where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two three, four, or five groups independently selected from alkyl, halo, hydroxy, hydroxyalkyl, optionally substituted alkoxy, alkoxyalkyl, haloalkyl, carboxy, alkoxycarbonyl, alkenyloxycarbonyl, optionally substituted cycloalkyl, optionally substituted cycloalkyloxycarbonyl, optionally substituted aryl, optionally substituted aryloxy, optionally substituted aryloxycarbonyl, optionally substituted arylalkyl, optionally substituted arylalkyloxy, optionally substituted arylalkyloxycarbonyl, nitro, cyano, optionally substituted heterocycloalkyl, optionally substituted heteroaryl, —S(O)nR31 (where n is 0, 1, or 2 and R31 is optionally substituted alkyl, optionally substituted aryl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —NR34SO2R34a (where R34 is hydrogen or alkyl and R34a is alkyl, alkenyl, cycloalkyl, aryl, heteroaryl, or heterocycloalkyl), —SO2NR35R35a (where R35 is hydrogen or alkyl and R35a is alkyl, alkenyl, cycloalkyl, aryl, heteroaryl, or heterocycloalkyl), —NR32C(O)R32a (where R32 is hydrogen or alkyl and R32a is alkyl, alkenyl, alkoxy, or cycloalkyl), —NR3OR30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), and —C(O)NR33R33a (where R33 is hydrogen or alkyl and R33a is alkyl, alkenyl, alkynyl, or cycloalkyl); and R9 is alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl; where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, or five groups selected from halo, hydroxy, alkyl, haloalkyl, haloalkoxy, amino, alkylamino, and dialkylamino; R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl; Group B: A is heteroarylene optionally substituted with one, two, three, or four groups selected from R10, R12, R14, R16 and R19 where R10, R12, R14 and R16 are independently hydrogen, alkyl, alkenyl, alkynyl, halo, haloalkoxy, hydroxy, alkoxy, cyano, amino, alkylamino, dialkylamino, haloalkyl, alkylsulfonylamino, alkylcarbonyl, alkenylcarbonyl, alkoxycarbonyl, alkenyloxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, or alkylcarbonylamino; where R19 is hydrogen, alkyl, or alkenyl; and where each alkyl and alkenyl, either alone or as part of another group within R10, R12, R14, R16, and R19, is independently optionally substituted with halo, hydroxy, or alkoxy; X is alkyl, halo, haloalkyl, or haloalkoxy; R1, R2, R3, R4, R5 and R6 are independently hydrogen, halo, nitro, —NR8R8′, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —N R8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b)), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl, where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or one of R1 and R2 together with the carbon to which they are attached, R3 and R4 together with the carbon to which they are attached, and R5 and R6 together with the carbon to which they are attached form C(O) or C(═NOH); m is 1 or 2; R7 is hydrogen, halo or alkyl; and R8, R8′ and R8″ are independently selected from hydrogen, hydroxy, optionally substituted alkoxy, alkyl, haloalkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl, where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two three, four, or five groups independently selected from alkyl, halo, hydroxy, hydroxyalkyl, optionally substituted alkoxy, alkoxyalkyl, haloalkyl, carboxy, carboxy ester, nitro, cyano, —S(O)nR31 (where n is 0, 1, or 2 and R31 is optionally substituted alkyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —NR36S(O)2R36a (where R36 is hydrogen, alkyl, or alkenyl and R36a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —S(O)2NR37R37a (where R37 is hydrogen, alkyl, or alkenyl and R37a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted aryloxy, optionally substituted arylalkyloxy, optionally substituted heteroaryl, —NHC(O)R32 (where R32 is alkyl, alkenyl, alkoxy, or cycloalkyl) and —NR3OR30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), and —C(O)NHR33 (where R33 is alkyl, alkenyl, alkynyl, or cycloalkyl); R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl; Group C: A is where R10 is hydrogen, alkyl, alkenyl, alkynyl, halo, haloalkoxy, hydroxy, alkoxy, amino, alkylamino, dialkylamino, haloalkyl, —NHS(O)2R8, —CN, —C(O)R8, —C(O)OR8, —C(O)NR8R8′ and —NR8C(O)R8′; R10a is hydrogen, alkyl, or alkenyl; Y1 is ═CH— or ═N—; X is alkyl, halo, haloalkyl, or haloalkoxy; R1, R2, R3, R4, R5 and R6 are independently hydrogen, halo, nitro, —NR8R8′, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —N R8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl, where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or one of R1 and R2 together with the carbon to which they are attached, R3 and R4 together with the carbon to which they are attached, and R5 and R6 together with the carbon to which they are attached form C(O) or C(═NOH); m is 1 or 2; R7 is hydrogen, halo or alkyl; and R8, R8′ and R8″ are independently selected from hydrogen, hydroxy, optionally substituted alkoxy, alkyl, haloalkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl, where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two three, four, or five groups independently selected from alkyl, halo, hydroxy, hydroxyalkyl, optionally substituted alkoxy, alkoxyalkyl, haloalkyl, carboxy, carboxy ester, nitro, cyano, —S(O)nR31 (where n is 0, 1, or 2 and R31 is optionally substituted alkyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —NR36S(O)2R36a (where R36 is hydrogen, alkyl, or alkenyl and R36a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —S(O)2NR37R37a (where R37 is hydrogen, alkyl, or alkenyl and R37a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted aryloxy, optionally substituted arylalkyloxy, optionally substituted heteroaryl, —NHC(O)R32 (where R32 is alkyl, alkenyl, alkoxy, or cycloalkyl) and —NR30R30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), and —C(O)NHR33 (where R33 is alkyl, alkenyl, alkynyl, or cycloalkyl); or R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl; Group D: A is R40 and R40a are independently hydrogen or alkyl; X is alkyl, halo, haloalkyl, or haloalkoxy; R1, R2, R3, R4, R5 and R6 are independently hydrogen, halo, nitro, —NR8R8′, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —N R8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl, where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or one of R1 and R2 together with the carbon to which they are attached, R3 and R4 together with the carbon to which they are attached, and R5 and R6 together with the carbon to which they are attached form C(O) or C(═NOH); m is 1 or 2; R7 is hydrogen, halo or alkyl; and R8, R8′ and R8″ are independently selected from hydrogen, hydroxy, optionally substituted alkoxy, alkyl, haloalkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl, where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two three, four, or five groups independently selected from alkyl, halo, hydroxy, hydroxyalkyl, optionally substituted alkoxy, alkoxyalkyl, haloalkyl, carboxy, carboxy ester, nitro, cyano, —S(O)nR31 (where n is 0, 1, or 2 and R31 is optionally substituted alkyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —NR36S(O)2R36a (where R36 is hydrogen, alkyl, or alkenyl and R36a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —S(O)2NR37R37a (where R37 is hydrogen, alkyl, or alkenyl and R37a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted aryloxy, optionally substituted arylalkyloxy, optionally substituted heteroaryl, —NHC(O)R32 (where R32 is alkyl, alkenyl, alkoxy, or cycloalkyl) and —NR3OR30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), and —C(O)NHR33 (where R33 is alkyl, alkenyl, alkynyl, or cycloalkyl); R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl. 2. A method of inhibiting MEK comprising administering to a patient a therapeutically effective amount of a compound of formula I, or a single stereoisomer or mixture of stereoisomers thereof and optionally as a pharmaceutically acceptable salt thereof, or a pharmaceutical composition comprising a therapeutically effective amount of a compound of formula I, or a single stereoisomer or mixture of stereoisomers thereof and optionally as a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, excipient, or diluent, wherein the compound of formula I is: wherein A, X, R1, R2, R3, R4, R5, R6, and R7 are as defined in Group A, Group B, Group C, or Group D: Group A: A is phenylene optionally substituted with one, two, three or four groups selected from R10, R12, R14, and R16 where R10, R12, R14 and R16 are independently hydrogen, alkyl, alkenyl, alkynyl, halo, haloalkoxy, hydroxy, alkoxy, amino, alkylamino, dialkylamino, haloalkyl, —NHS(O)2R8, —CN, —C(O)R8, —C(O)OR8, —C(O)NR8R8′ and —NR8C(O)R8′; X is alkyl, halo, haloalkyl, or haloalkoxy; R1, R2, R3, R4, R5 and R6 are independently hydrogen, halo, nitro, —NR8R8′, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —N R8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl; where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or one of R1 and R2 together with the carbon to which they are attached, R3 and R4 together with the carbon to which they are attached, and R5 and R6 together with the carbon to which they are attached form C(O) or C(═NOH); m is 0, 1, or 2; R7 is hydrogen, halo or alkyl; R8, R8′ and R8″ are independently selected from hydrogen, hydroxy, optionally substituted alkoxy, alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl; where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two three, four, or five groups independently selected from alkyl, halo, hydroxy, hydroxyalkyl, optionally substituted alkoxy, alkoxyalkyl, haloalkyl, carboxy, alkoxycarbonyl, alkenyloxycarbonyl, optionally substituted cycloalkyl, optionally substituted cycloalkyloxycarbonyl, optionally substituted aryl, optionally substituted aryloxy, optionally substituted aryloxycarbonyl, optionally substituted arylalkyl, optionally substituted arylalkyloxy, optionally substituted arylalkyloxycarbonyl, nitro, cyano, optionally substituted heterocycloalkyl, optionally substituted heteroaryl, —S(O)nR31 (where n is 0, 1, or 2 and R31 is optionally substituted alkyl, optionally substituted aryl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —NR34SO2R34a (where R34 is hydrogen or alkyl and R34a is alkyl, alkenyl, cycloalkyl, aryl, heteroaryl, or heterocycloalkyl), —SO2NR35R35a (where R35 is hydrogen or alkyl and R35a is alkyl, alkenyl, cycloalkyl, aryl, heteroaryl, or heterocycloalkyl), —NR32C(O)R32a (where R32 is hydrogen or alkyl and R32a is alkyl, alkenyl, alkoxy, or cycloalkyl), —NR30R30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), and —C(O)NR33R33a (where R33 is hydrogen or alkyl and R33a is alkyl, alkenyl, alkynyl, or cycloalkyl); and R9 is alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl; where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, or five groups selected from halo, hydroxy, alkyl, haloalkyl, haloalkoxy, amino, alkylamino, and dialkylamino; R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl; Group B: A is heteroarylene optionally substituted with one, two, three, or four groups selected from R10, R12, R14, R16 and R19 where R10, R12, R14 and R16 are independently hydrogen, alkyl, alkenyl, alkynyl, halo, haloalkoxy, hydroxy, alkoxy, cyano, amino, alkylamino, dialkylamino, haloalkyl, alkylsulfonylamino, alkylcarbonyl, alkenylcarbonyl, alkoxycarbonyl, alkenyloxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, or alkylcarbonylamino; where R19 is hydrogen, alkyl, or alkenyl; and where each alkyl and alkenyl, either alone or as part of another group within R10, R12, R14, R16, and R19, is independently optionally substituted with halo, hydroxy, or alkoxy; X is alkyl, halo, haloalkyl, or haloalkoxy; R1, R2, R3, R4, R5 and R6 are independently hydrogen, halo, nitro, —NR8R8′, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —N R8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl, where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or one of R1 and R2 together with the carbon to which they are attached, R3 and R4 together with the carbon to which they are attached, and R5 and R6 together with the carbon to which they are attached form C(O) or C(═NOH); m is 1 or 2; R7 is hydrogen, halo or alkyl; and R8, R8′ and R8″ are independently selected from hydrogen, hydroxy, optionally substituted alkoxy, alkyl, haloalkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl, where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two three, four, or five groups independently selected from alkyl, halo, hydroxy, hydroxyalkyl, optionally substituted alkoxy, alkoxyalkyl, haloalkyl, carboxy, carboxy ester, nitro, cyano, —S(O)nR31 (where n is 0, 1, or 2 and R31 is optionally substituted alkyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —NR36S(O)2R36a (where R36 is hydrogen, alkyl, or alkenyl and R36a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —S(O)2NR37R37a (where R37 is hydrogen, alkyl, or alkenyl and R37a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted aryloxy, optionally substituted arylalkyloxy, optionally substituted heteroaryl, —NHC(O)R32 (where R32 is alkyl, alkenyl, alkoxy, or cycloalkyl) and —NR30R30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), and —C(O)NHR33 (where R33 is alkyl, alkenyl, alkynyl, or cycloalkyl); R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl; Group C: A is where R10 is hydrogen, alkyl, alkenyl, alkynyl, halo, haloalkoxy, hydroxy, alkoxy, amino, alkylamino, dialkylamino, haloalkyl, —NHS(O)2R8, —CN, —C(O)R8, —C(O)OR8, —C(O)NR8R8′ and —NR8C(O)R8′; R10a is hydrogen, alkyl, or alkenyl; Y1 is ═CH— or ═N—; X is alkyl, halo, haloalkyl, or haloalkoxy; R1, R2, R3, R4, R5 and R6 are independently hydrogen, halo, nitro, —NR8R8, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —N R8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl, where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or one of R1 and R2 together with the carbon to which they are attached, R3 and R4 together with the carbon to which they are attached, and R5 and R6 together with the carbon to which they are attached form C(O) or C(═NOH); m is 1 or 2; R7 is hydrogen, halo or alkyl; and R8, R8′ and R8″ are independently selected from hydrogen, hydroxy, optionally substituted alkoxy, alkyl, haloalkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl, where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two three, four, or five groups independently selected from alkyl, halo, hydroxy, hydroxyalkyl, optionally substituted alkoxy, alkoxyalkyl, haloalkyl, carboxy, carboxy ester, nitro, cyano, —S(O)nR31 (where n is 0, 1, or 2 and R31 is optionally substituted alkyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —NR36S(O)2R36a (where R36 is hydrogen, alkyl, or alkenyl and R36a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —S(O)2NR37R37a (where R37 is hydrogen, alkyl, or alkenyl and R37a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted aryloxy, optionally substituted arylalkyloxy, optionally substituted heteroaryl, —NHC(O)R32 (where R32 is alkyl, alkenyl, alkoxy, or cycloalkyl) and —NR30R30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), and —C(O)NHR33 (where R33 is alkyl, alkenyl, alkynyl, or cycloalkyl); or R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl; Group D: A is R40 and R40a are independently hydrogen or alkyl; X is alkyl, halo, haloalkyl, or haloalkoxy; R1, R2, R3, R4, R5 and R6 are independently hydrogen, halo, nitro, —NR8R8′, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —N R8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl, where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or one of R1 and R2 together with the carbon to which they are attached, R3 and R4 together with the carbon to which they are attached, and R5 and R6 together with the carbon to which they are attached form C(O) or C(═NOH); m is 1 or 2; R7 is hydrogen, halo or alkyl; and R8, R8′ and R8″ are independently selected from hydrogen, hydroxy, optionally substituted alkoxy, alkyl, haloalkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl, where the alkyl, alkenyl, alkynyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two three, four, or five groups independently selected from alkyl, halo, hydroxy, hydroxyalkyl, optionally substituted alkoxy, alkoxyalkyl, haloalkyl, carboxy, carboxy ester, nitro, cyano, —S(O)nR31 (where n is 0, 1, or 2 and R31 is optionally substituted alkyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —NR36S(O)2R36a (where R36 is hydrogen, alkyl, or alkenyl and R36a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), —S(O)2NR37R37a (where R37 is hydrogen, alkyl, or alkenyl and R37a is alkyl, alkenyl, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, or optionally substituted heteroaryl), optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted aryloxy, optionally substituted arylalkyloxy, optionally substituted heteroaryl, —NHC(O)R32 (where R32 is alkyl, alkenyl, alkoxy, or cycloalkyl) and —NR30R30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), and —C(O)NHR33 (where R33 is alkyl, alkenyl, alkynyl, or cycloalkyl); R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl. 3. The method of claim 1 wherein the compound of formula I is selected from Group A, Group B, and Group C, where: Group A A is phenylene optionally substituted with one or two groups selected from R10, R12, R14, and R16 where R10, R12, R14 and R16 are independently hydrogen or halo; X is halo; R1, R2, R5 and R6 are hydrogen; R3 is hydrogen, halo, hydroxy, alkoxy, or amino; R4 is hydrogen, —NR8R8′, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, cycloalkyl, heterocycloalkyl, or heteroaryl; where the alkyl is optionally substituted with one, two, or three groups independently selected from —OR8, halo, nitro, —S(O)mR9, optionally substituted heterocycloalkyl, —NR8R8′, —NR8C(O)R8′, —NR8S(O)2R9, —NR8C(O)OR8′, and aryl; where the cycloalkyl is optionally substituted with one or two groups selected from −OR8 and —NR8R8′; where the heterocycloalkyl is optionally substituted with one or two groups independently selected from alkyl and —C(O)OR8; and where the heteroaryl is optionally substituted with —NR8R8′; or R3 and R4 together with the carbon to which they are attached form C(O) or C(═NOH); m is 0; R7 is halo; R8 and R8′ are independently selected from hydrogen, hydroxy, alkyl, alkenyl, alkynyl, aryl, heterocycloalkyl, heteroaryl, and cycloalkyl; where the R8 and R8′ alkyl are independently optionally substituted with one, two, or three groups independently selected from hydroxy, —NR30R30′ (where R30 and R30′ are independently hydrogen, alkyl, or hydroxyalkyl), optionally substituted heteroaryl, optionally substituted cycloalkyl), optionally substituted alkoxy, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted heterocycloalkyl, optionally substituted heteroaryl, —C(O)NR33R33a (where R33 is hydrogen or alkyl and R33a is alkyl, alkenyl, alkynyl, or cycloalkyl), optionally substituted aryloxy, —S(O)nR31 (where n is 0 and R31 is alkyl), carboxy, alkoxycarbonyl, and —NR32C(O)R32a (where R32 is hydrogen or alkyl and R32a is alkyl, alkenyl, alkoxy, or cycloalkyl); or where the alkyl is optionally substituted with one, two, three, four, or five halo; where the R8 and R8′ heteroaryl are independently optionally substituted with one or two groups independently selected from amino and alkyl; where the R8 and R8′ heterocycloalkyl are independently optionally substituted with one, two, or three groups independently selected from alkyl, alkoxycarbonyl, optionally substituted arylalkyl, hydroxy, alkoxy, and hydroxyalkyl; where the R8 and R8′ aryl are independently optionally substituted with one or two groups independently selected from hydroxy, alkoxy, halo, —NR32C(O)R32a (where R32 is hydrogen or alkyl and R32a is alkyl, alkenyl, alkoxy, or cycloalkyl), and —NR34SO2R34a (where R34 is hydrogen or alkyl and R34a is alkyl, alkenyl, cycloalkyl, aryl, heteroaryl, or heterocycloalkyl); and where the R8 and R8′ cycloalkyl are independently optionally substituted with one, two, or three groups independently selected from hydroxy, hydroxyalkyl, alkoxy, carboxy, —C(O)NR33R33a (where R33 is hydrogen or alkyl and R33a is alkyl, alkenyl, alkynyl, or cycloalkyl), and optionally substituted cycloalkyl; and R9 is alkyl or aryl; Group B A is thien-3,4-diyl, benzo[d]isoxazol-5,6-diyl, 1H-indazol-5,6-diyl (optionally substituted at the N1 position with R19 where R19 is alkyl or alkenyl), benzo[d]oxazol-5,6-diyl, 1H-benzo[d]imidazol-5,6-diyl (optionally substituted at the N1 position with R19 where R19 is alkyl or alkenyl), 1H-benzo [d][1,2,3]triazol-5,6-diyl (optionally substituted at the N1 position with R19 where R19 is alkyl or alkenyl), imidazo[1,2-c]pyridin-6,7-diyl, cinnolin-6,7-diyl, quinolin-6,7-diyl, pyridin-3,4-diyl, 1-oxido-pyridin-3,4-diyl, [1,2,4]triazolo[4,3-a]pyridin-6,7-diyl, or 2,3-dihydroimidazo[1,2-a]pyridin-6,7-diyl; where A is optionally substituted with one, two, or three groups independently selected from R10, R12, R14, R16 and R19 where R10, R12, R14 and R16 are independently hydrogen, alkyl, halo, or amino; and R19 is hydrogen or alkyl; X is halo; R1, R2, R5 and R6 are hydrogen; R3 is hydrogen or hydroxy; R4 is —NR8R8′, heterocycloalkyl, heteroaryl, or alkyl; where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl; R7 is halo; R8 is hydrogen or alkyl; and R8′ is hydrogen, alkyl, or cycloalkyl; where the cycloalkyl is optionally substituted with one or two groups independently selected from hydroxy and alkyl; Group C A is R10 is hydrogen or halo; R10a is hydrogen or alkyl; Y1 is ═CH— or ═N—; X is halo; R1, R2, R5 and R6 are hydrogen; R3 is hydrogen or hydroxy; R4 is —NR8R8′, heterocycloalkyl, heteroaryl, or alkyl; where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl; R7 is halo; R8 is hydrogen or alkyl; and R8′ is hydrogen, alkyl, or cycloalkyl; where the cycloalkyl is optionally substituted with one or two groups independently selected from hydroxy and alkyl. 4. The method of claim 1, wherein the compound of formula I is where R3 is halo, nitro, —NR8R8′, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N (R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl; where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; and R4 is as defined in claim 1; or R3 and R4 together with the carbon to which they are attached form C(O) or C(═NOH); R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl. 5. The method of claim 1, wherein the compound of formula I is where R3 and R4 are independently halo, nitro, —NR8R8′, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl; where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or R3 and R4 together with the carbon to which they are attached form C(O) or C(═NOH); R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl. 6. The method of claim 1 wherein the compound of formula I is where R7 is halo. 7. The method of claim 1 wherein the compound of formula I is where X is halo. 8. The method of claim 1 wherein the compound of formula I is where R1, R2, R5, and R6 are hydrogen. 9. The method of claim 1 wherein the compound of formula I is selected from Group A where R4 is —NR8R8′ (where R8 is hydrogen, hydroxy, alkyl, alkoxy, aryl, cycloalkyl, heteroaryl, or heterocycloalkyl and R8′ is hydroxy, alkoxy, aryl, cycloalkyl, heteroaryl, or heterocycloalkyl), —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkenyl, or alkynyl; where the alkenyl and alkynyl are optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or R3 and R4 together with the carbon to which they are attached form C(O) or C(═NOH). 10. The method of claim 1 wherein the compound of formula I is where R3 is hydrogen, halo, hydroxy, amino, or alkoxy. 11. The method of claim 1 wherein the compound of formula I is where R4 is hydrogen, —NR8R8′, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, cycloalkyl, heterocycloalkyl, or heteroaryl; where the alkyl is optionally substituted with one, two, or three —OR8, halo, nitro, —S(O)mR9, optionally substituted heterocycloalkyl, —NR8R8′, —NR8C(O)R8′, —NR8S(O)2R9, —NR8C(O)OR8′, aryl; where the cycloalkyl is optionally substituted with one or two —NR8R8′; where the heterocycloalkyl is optionally substituted with one or two groups independently selected from alkyl and —C(O)OR8; and where the heteroaryl is optionally substituted with —NR8R8′; R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl. 12. The method of claim 1 wherein the compound of formula I is selected from Group A where A is phenylene optionally substituted with one or two groups independently selected from R10, R12, R14, and R16 where R10, R12, R14 and R16 are independently hydrogen or halo. 13. The method of claim 1 wherein the compound of formula I is selected from Group A where R3 is hydrogen; and R4 is hydrogen, —NR8R8′, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)R8′, alkyl, or heterocycloalkyl; where the alkyl is optionally substituted with one or two groups independently selected from —OR8 and —NR8R8′; and where the heterocycloalkyl is optionally substituted with —NR8R8′. 14. The method of claim 1 wherein the compound of formula I is selected from Group A where R3 is alkoxy; and R4 is alkyl or heterocycloalkyl where the alkyl is substituted with —NR8R8′. 15. The method of claim 1 wherein the compound of formula I is selected from Group A where R3 is halo; and R4 is alkyl or heterocycloalkyl where the alkyl is substituted with —NR8R8′. 16. The method of claim 1 wherein the compound of formula I is selected from Group A where R3 and R4 together with the carbon to which they are attached form C(O) or C(═NOH). 17. The method of claim 1 wherein the compound of formula I is selected from Group A where R3 is hydroxy; and R4 is hydrogen, —C(O)NR8R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, heterocycloalkyl, cycloalkyl, heterocycloalkyl, or heteroaryl; where the alkyl is optionally substituted with one, two, or three groups selected from —OR8, halo, nitro, —S(O)mR9, optionally substituted heterocycloalkyl, —NR8R8′, —NR8C(O)R8′, optionally substituted heteroaryl, —NR8S(O)2R9, —NR8C(O)OR8′, and aryl; where the cycloalkyl is optionally substituted with one or two groups independently selected from —NR8R8′ and —C(O)NR33R33a; where the heterocycloalkyl is optionally substituted with one, two or three groups independently selected from alkyl and —C(O)OR8; and where the heteroaryl is optionally substituted with —NR8R8′. 18. The method of claim 1 wherein the compound of formula I is selected from Group A where R7 is iodo or bromo; X is fluoro or chloro; and R1, R2, R5, and R6 are hydrogen; and R10, R12, R14, and R16 are independently hydrogen or fluoro. 19. The method of claim 18 wherein the compound of formula I is selected from Group A where R10 is 3-fluoro and R12, R14, and R16 are hydrogen or halo; R10 is 3-fluoro, R12 is 4-fluoro, and R14 and R16 are hydrogen; R10 is 4-fluoro, R12 is 5-fluoro, and R14 and R16 are hydrogen; R10 is 4-fluoro, R12 is 6-fluoro, and R14 and R16 are hydrogen; or R12 is 4-fluro and R10, R14, and R16 are hydrogen. 20. The method of claim 1 wherein the compound of formula I is selected from Group A where R3 is hydroxy. 21. The method of claim 20 wherein the compound of formula I is selected from Group A where R4 is —C(O)NR8R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), —CH2NR25C(NR25aR25b)═C H(NO2), alkyl, cycloalkyl, heterocycloalkyl, or heteroaryl; where the alkyl, cycloalkyl, heteroaryl, and heterocycloalkyl are independently optionally substituted with one, two, three, or four groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, —OR8, —NR8R8, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; or where the alkyl is optionally substituted with one, two, three, four, five, six or seven halo. 22. The method of claim 21 wherein the compound of formula I is selected from Group A where R4 is alkyl, heterocycloalkyl, or heteroaryl; where the alkyl is optionally substituted with —NR8R8′; where the heterocycloalkyl is optionally substituted with alkyl or —C(O)OR8; and where the heteroaryl is optionally substituted with alkyl. 23. The method of claim 1 wherein the compound of formula I is where R1 is halo, nitro, —NR8R8, —OR8, —NHS(O)2R8, —CN, —S(O)mR8, —S(O)2NR8R8′, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)OR8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′, —NR8C(O)R8′, —CH2N(R25)(NR25aR25b), —CH2NR25C(═NH)(NR25aR25b), —CH2NR25C(═NH)(N(R25a)(NO2)), —CH2NR25C(═NH)(N(R25a)(CN)), —CH2NR25C(═NH)(R25), or —CH2NR25C(NR25aR25b)═CH(NO2), alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl; where the alkyl, alkenyl, alkynyl, cycloalkyl, heteroaryl, or heterocycloalkyl are independently optionally substituted with one, two, three, four, five, six or seven groups independently selected from halo, alkyl, haloalkyl, nitro, optionally substituted cycloalkyl, optionally substituted heterocycloalkyl, optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl, —OR8, —NR8R8′, —NR8S(O)2R9, —CN, —S(O)mR9, —C(O)R8, —C(O)OR8, —C(O)NR8R8′, —NR8C(O)NR8′R8″, —NR8C(O)OR8′ and —NR8C(O)R8′; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl; R25 and R25b are independently hydrogen, alkyl, alkenyl, optionally substituted cycloalkyl, or optionally substituted aryl; and R25a is hydrogen, alkyl, or alkenyl. 24. The method of claim 1 wherein the compound of formula I is selected from Group B where A is thien-3,4-diyl, benzo[d]isoxazol-5,6-diyl, 1H-indazol-5,6-diyl (optionally substituted at the Ni position with R19 where R19 is alkyl or alkenyl), benzo [d]oxazol-5,6-diyl, 1H-benzo[d]imidazol-5,6-diyl (optionally substituted at the N1 position with R19 where R19 is alkyl or alkenyl), 1H-benzo[d][1,2,3]triazol-5,6-diyl (optionally substituted at the N1 position with R19 where R19 is alkyl or alkenyl), imidazo[1,2-a]pyridin-6,7-diyl, cinnolin-6,7-diyl, quinolin-6,7-diyl, pyridin-3,4-diyl, 1-oxido-pyridin-3,4-diyl, [1,2,4]triazolo [4,3-a]pyridin-6,7-diyl, or 2,3-dihydroimidazo [1,2-a]pyridin-6,7-diyl. 25. The method of claim 1 wherein the compound of formula I is where A is thien-3,4-diyl; R10 and R12 are hydrogen; X and R7 are halo; and R1, R2, R5, and R6 are hydrogen. 26. The method of claim 25 wherein the compound of formula I is where R3 is hydrogen or hydroxy; and R4 is —NR8R8′, heterocycloalkyl, heteroaryl, or alkyl, where the alkyl is optionally substituted with —NR8R8′. 27. The method of claim 1 wherein the compound of formula I is selected from Group B where A is benzo[d]isoxazol-5,6-diyl; R10, R12, R14 are independently hydrogen, halo, or alkyl; R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 28. The method of claim 24 wherein the compound of formula I is according to Formula I(g) or I(h): where R10, R12, and R14 are independently hydrogen, halo, or alkyl; R19 is alkyl or alkenyl; R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 29. The method of claim 24 wherein the compound of formula I is according to Formula I(i) or I(j): where R10, R12, and R14 are independently hydrogen, halo, or alkyl; R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 30. The method of 24 wherein the compound of formula I is according to Formula I(n) or I(o): where R7 is halo or alkyl; X is halo; R19 is alkyl; R1, R2, R5, and R6 are hydrogen; R10, R12, and R14 are independently hydrogen or halo; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 31. The method of 24 wherein the compound of formula I is according to Formula I(p): where R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R10 and R12 are independently hydrogen, halo, or alkyl; R19 is hydrogen or alkyl; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 32. The method of 24 wherein the compound of formula I is according to Formula I(q): where R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R10, R12, R14, and R16 are independently hydrogen or halo; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 33. The method of 24 wherein the compound of formula I is according to Formula I(r): where R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R10 and R12 are independently hydrogen, halo, or alkyl; R14 is hydrogen, halo, alkyl, or amino; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 34. The method of 24 wherein the compound of formula I is according to Formula I(s): R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R10 and R12 are independently hydrogen, halo, or alkyl; R14 is hydrogen, halo, alkyl, or amino; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 35. The method of 24 wherein the compound of formula I is according to Formula I(u), I(v), I(w), or I(x): where R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R10, R12, and R14 are independently hydrogen, halo, or alkyl; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 36. The method of claim 1 wherein the compound of formula I is selected from Group C and according to Formula I(y) or I(z): where R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R10 is hydrogen, halo, or alkyl; R10a is alkyl; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 37. The method of claim 1 wherein the compound of formula I is selected from Group D and according to Formula I(aa) or I(bb): where R1, R2, R5, and R6 are hydrogen; X and R7 are halo; R3 is hydroxy; and R4 is heterocycloalkyl, alkyl, or heteroaryl, where the alkyl is optionally substituted with —NR8R8′ and where the heteroaryl is optionally substituted with alkyl. 38. The method of claim 1 wherein the compound of formula I is selected from the group consisting of: 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}-carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-one; 6-(azetidin-1-ylcarbonyl)-2,3-difluoro-N-(2-fluoro-4-iodophenyl)aniline; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(hydroxymethyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(trifluoromethyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-prop-2-en-1-ylazetidin-3-ol; 3-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]propane-1,2-diol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-ethylazetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-methylazetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-ethenylazetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-one; oxime; [1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]methanol; 1-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]ethane-1,2-diol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amine; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-hydroxyazetidine-3-carboxamide; 1,1-dimethylethyl [1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]carbamate; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(pyrrolidin-1-ylmethyl)azetidin-3-ol; 3-[(diethylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(dimethylamino)methyl]azetidin-3-ol; N-butyl-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidine-3-carboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-prop-2-en-1-ylazetidine-3-carboxamide; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-2-methylpropanamide; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]formamide; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-3,4-dihydroxybutanamide; methyl[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]carbamate; N-butyl-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl} carbonyl)azetidin-3-amine; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2R)-piperidin-2-yl]azetidin-3-ol; (R)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-pyrrolidin-2-ylazetidin-3-ol; (S)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-pyrrolidin-2-ylazetidin-3-ol; 3-(aminomethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-[(1S)-1-aminoethyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-[(1R)-1-aminoethyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; (R)-(3-(1-aminopropyl)-3-hydroxyazetidin-1-yl)(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)methanone; (S)-(3-(1-aminopropyl)-3-hydroxyazetidin-1-yl)(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)methanone; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-ethylazetidine-3-carboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-(2-hydroxyethyl)azetidine-3-carboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-(2-piperidin-1-ylethyl)azetidine-3-carboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-phenylazetidine-3-carboxamide; N-[2-(diethylamino)ethyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidine-3-carboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(morpholin-4-ylmethyl)azetidin-3-ol; 1-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}piperidin-4-ol; 3-{[bis(2-hydroxyethyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol, N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-2-(4-methylpiperazin-1-yl)acetamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(4-methylpiperazin-1-yl)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(4-methyl-1,4-diazepan-1-yl)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[methyl(1-methylpyrrolidin-3-yl)amino]methyl}azetidin-3-ol; 3-(1,4′-bipiperidin-1′-ylmethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-N,N-bis(2-hydroxyethyl)glycinamide; 3-({4-[2-(diethylamino)ethyl]piperazin-1-yl}methyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-hydroxyethyl)(methyl)amino]methyl}azetidin-3-ol; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-2-piperidin-1-ylacetamide; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-N3-(2-hydroxyethyl)-N-3-methyl-beta-alaninamide; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-N3,N3-bis(2-hydroxyethyl)-beta-alaninamide; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-N2,N2-diethylglycinamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-methylazetidin-3-amine; 1-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-N,N-dimethylpyrrolidin-3-amine; 2-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]amino}ethanol; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]propane-1,3-diamine; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-methyl-N-(2-pyridin-2-ylethyl)azetidin-3-amine; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]-N-2-methylglycinamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-ethylazetidin-3-amine; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-(2-methylpropyl)azetidin-3-amine; N-(cyclopropylmethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amine; N-(cyclohexylmethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amine; N-(cyclopentylmethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amine; 3-(azetidin-1-ylmethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-[(2,3-dihydroxypropyl)oxy]azetidine-3-carboxamide; 2-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-2-yl]methyl}amino)ethanol; N-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-2-yl]methyl}ethane-1,2-diamine; N-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-yl]glycinamide; 6-({3-[(dimethylamino)methyl]azetidin-1-yl}carbonyl)-2,3-difluoro-N-(2-fluoro-4-iodophenyl)aniline; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1-methylethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-(3,4-dihydroxybutyl)azetidine-3-carboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-(2,3-dihydroxypropyl)azetidine-3-carboxamide; 1-({2,4-difluoro-6-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amine; 1-({4,5-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-amine; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidine-3-carboxamide; 6-{[3-(aminomethyl)-3-(methyloxy)azetidin-1-yl]carbonyl}-2,3-difluoro-N-(2-fluoro-4-iodophenyl)aniline; N-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}acetamide; 2,3-difluoro-N-(2-fluoro-4-iodophenyl)-6-[(3-{[(1-methylethyl)amino]methyl}azetidin-1-yl)carbonyl]aniline; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(ethylamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{2-[(1-methylethyl)amino]ethyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(2-hydroxy-1,1-dimethylethyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{1,1-dimethyl-2-[(1-methylethyl)amino]ethyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1-methylethyl)amino]methyl}azetidin-3-amine; 3-[(cyclopropylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2,2,2-trifluoroethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1H-imidazol-1-ylmethyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1,1-dimethylethyl)amino]methyl}azetidin-3-ol; 3-[(cyclopentylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxy-N-prop-2-en-1-ylazetidine-3-carboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-(2,3-dihydroxypropyl)-3-hydroxyazetidine-3-carboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1H-1,2,3-triazol-1-ylmethyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2,2-dimethylpropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(propylamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-methylpropyl)amino]methyl}azetidin-3-ol; 3-{[(cyclopropylmethyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(phenylmethyl)amino]methyl}azetidin-3-ol; 3-{[(cyclohexylmethyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-[(butylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(1-ethylpyrrolidin-2-yl)methyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-hydroxyethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(dimethylamino)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-hydroxy-1,1-dimethylethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(4-methylphenyl)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(prop-2-en-1-yl amino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(1-methylpyrrolidin-2-yl)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2,3-dihydro-1H-inden-2-ylamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(tetrahydrofuran-2-ylmethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(tetrahydro-2H-pyran-4-yl)ethyl]amino}methyl)azetidin-3-ol, 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(1S,2S)-2-hydroxycyclopentyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1,1-dimethylprop-2-yn-1-yl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(3-pyrrolidin-1-ylpropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1,2-dimethylpropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(1H-imidazol-4-yl)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[1-methyl-2-(methyloxy)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[3-(ethyloxy)propyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1-ethylpropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(3,3-dimethylbutyl)amino]methyl}azetidin-3-ol; ethyl 4-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)piperidine-1-carboxylate; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(3-methylbutyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(ethyloxy)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[3-(dimethylamino)propyl]amino}methyl)azetidin-3-ol; 3-[(cyclobutylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-({[3-(diethylamino)propyl]amino}methyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[3-(1H-imidazol-1-yl)propyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(methylthio)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[1-(phenylmethyl)piperidin-4-yl]amino}methyl)azetidin-3-ol; 3-({[2,2-bis(methyloxy)ethyl]amino}methyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1,1,3,3-tetramethylbutyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1,1-dimethylpropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2,3-dihydro-1H-inden-1-ylamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[({2-[(phenylmethyl)oxy]cyclopentyl}amino)methyl]azetidin-3-ol; 3-{[(3-amino-2-hydroxypropyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-hydroxy-1-(phenylmethyl)ethyl]amino}methyl)azetidin-3-ol; 3-[(cyclooctylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-{[(1-cyclohexylethyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-[(cycloheptylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-pyridin-3-ylethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[3-(methylthio)propyl]amino}methyl)azetidin-3-ol; N-cyclohexyl-N2-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}-2-methylalaninamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(tetrahydro-2H-pyran-4-ylmethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(3-hydroxypropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-pyridin-4-ylethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[1-(phenylmethyl)pyrrolidin-3-yl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(2-thienyl)ethyl]amino}methyl)azetidin-3-ol; 3-[({2-[bis(1-methyl ethyl)amino]ethyl}amino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(phenyloxy)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(phenylamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-hydroxypropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[({2-[(1-methylethyl)oxy]ethyl}amino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1-ethylpiperidin-3-yl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(methyloxy)ethyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1-nitropropyl)azetidin-3-ol; 3-(1-aminoethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(1-methylpiperidin-4-yl)methyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[4-(dimethylamino)butyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-furan-2-ylethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{1-[(1,1-dimethylethyl)amino]ethyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-ethylbutyl)amino]methyl}azetidin-3-ol; 1-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}pyrrolidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({(2S)-2-[(methyloxy)methyl]pyrrolidin-1-yl}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-hydroxyphenyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(4-hydroxyphenyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(3-hydroxyphenyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(phenyloxy)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1 r,3r,5R,7R)-tricyclo [3.3.1.13.7]dec-2-ylamino]methyl}azetidin-3-ol; 3-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)propane-1,2-diol; N-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}-L-alanine; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(phenylthio)methyl]azetidin-3-ol; N-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}-D-alanine; methyl N-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}alaninate; 3-[({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)oxy]propane-1,2-diol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(5-methyl-1,3,4-oxadiazol-2-yl)methyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1-methylbutyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1-methylpropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-methylbutyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(pentylamino)methyl]azetidin-3-ol; 3-[(cyclohexylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[1-(ethylamino)ethyl]azetidin-3-ol; 3-[(azepan-3-ylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(dimethylamino)-1-methylethyl]amino}methyl)azetidin-3-ol; N-cyclopropyl-1-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)cyclopentanecarboxamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[2-(2,3-dihydro-1H-indol-3-yl)ethyl]amino}methyl)azetidin-3-ol; N2-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}-N-ethyl-2-methylalaninamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2-methylhydrazino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(hydroxyamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(methyloxy)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(ethyloxy)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[1-(ethylamino)propyl]azetidin-3-ol; 3-[(azetidin-3-ylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(1,3-thiazol-2-ylamino)methyl]azetidin-3-ol; 1,1-dimethylethyl [3-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)propyl]carbamate; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(pyrrolidin-2-ylmethyl)amino]methyl}azetidin-3-ol; 1,1-dimethylethyl 4-[({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)methyl]piperidine-1-carboxylate; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(2-hydroxyphenyl)methyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(3-hydroxyphenyl)methyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(4-hydroxyphenyl)methyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(4-hydroxybutyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-hydroxyethyl)oxy]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(1 S,2S)-2-hydroxycyclohexyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(1,1-dimethyl-2-pyrrolidin-1-ylethyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(1-methyl-1H-imidazol-4-yl)methyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(1-methyl-1H-imidazol-5-yl)methyl]amino}methyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[(2S)-2-(methyloxy)cyclopentyl]amino}methyl)azetidin-3-ol; 3-{[1,1′-bi(cyclohexyl)-2-ylamino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[3-(methyloxy)phenyl]amino}methyl)azetidin-3-ol; 1-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)cyclopentanecarboxylic acid; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(4-fluorophenyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(1,3,5-triazin-2-ylamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(trans-4-hydroxycyclohexyl)amino]methyl}azetidin-3-ol; 3-[(cyclopent-3-en-1-ylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; N-[4-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)phenyl]acetamide; N-[3-({1-([3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)phenyl]acetamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1-methylpyrrolidin-2-yl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(1H-1,2,4-triazol-3-ylamino)methyl]azetidin-3-ol; 3-[1-(diethylamino)propyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)-5-(hydroxymethypcyclopentane-1,2-diol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-piperidin-2-ylazetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(3-fluorophenyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1-methylpiperidin-2-yl)azetidin-3-ol; 1-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}guanidine; 1-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}-3-nitroguanidine; N-{1-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]ethyl}acetamide; (2R)—N-{1-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]ethyl}-3,3,3-trifluoro-2-(methyloxy)-2-phenylpropanamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(piperidin-4-ylmethyl)amino]methyl}azetidin-3-ol; 3-{[(3-aminopropyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[({[2-(4-methylpiperazin-1-yl)phenyl]methyl}amino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-hydroxycyclohexyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2,2,3,3,3-pentafluoropropyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(3,3,3-trifluoropropyl)amino]methyl}azetidin-3-ol; N-[3-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)phenyl]methanesulfonamide; N-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}methanesulfonamide; 3-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)-1H-pyrazol-5-ol; (1R,2S)-4-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)cyclopentane-1,2-diol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[1-(hydroxymethyl)cyclohexyl]amino}methyl)azetidin-3-ol; 3-{[(3-chlorophenyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-{[(4-chlorophenyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-[(5-amino-3-methyl-1H-pyrazol-1-yl)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(5-methyl-1H-pyrazol-3-yl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1-ethylpyrrolidin-2-yl)azetidin-3-ol; (2R)—N-1(1S)-1-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]ethyl}-3,3,3-trifluoro-2-(methyloxy)-2-phenylpropanamide; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[4-(methyloxy)phenyl]amino}methyl)azetidin-3-ol; 3-(1-amino-2-methylpropyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-{[(4-aminophenyl)amino]methyl}-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-hydroxy-2-methylcyclopentyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{1-[(4-hydroxycyclohexyl)amino]ethyl}azetidin-3-ol; methyl (2xi)-2-deoxy-2-({[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}amino)-beta-D-arabino-hexopyranoside; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-pyridin-2-ylazetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-({[1-(hydroxymethyl)cyclopentyl]amino}methyl)azetidin-3-ol; 1-cyano-3-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}guanidine; 6-({3-[(ethylamino)methyl]-3-fluoroazetidin-1-yl}carbonyl)-2,3-difluoro-N-(2-fluoro-4-iodophenyl)aniline; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1-nitroethyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(3-fluoro-4-hydroxyphenyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(2-fluoro-4-hydroxyphenyl)amino]methyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[1-(methylamino)ethyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1H-pyrrol-2-yl)azetidin-3-ol; N-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}benzenecarboximidamide; 3-({[(E)-1-amino-2-nitroethenyl]amino}methyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1-methyl-1-nitroethyl)azetidin-3-ol; 3-(1-amino-1-methylethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-[(1H-benzimidazol-2-ylamino)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(1H-imidazol-2-ylamino)methyl]azetidin-3-ol; methyl {1-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]ethyl}carbamate; 3-(1H-benzimidazol-2-yl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[1-(dimethylamino)ethyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(pyrimidin-2-ylamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(pyridin-2-ylamino)methyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1-methyl-1H-imidazol-2-yl)azetidin-3-ol; 3-(1-aminobutyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-[amino(phenyl)methyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(5-methyl-1H-imidazol-2-yl)azetidin-3-ol; 1,1-dimethylethyl (2S)-2-[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]piperidine-1-carboxylate; 1-({2-[(4-bromo-2-chlorophenyl)amino]-3,4-difluorophenyl}carbonyl)-3-piperidin-2-ylazetidin-3-ol; 3-(1-amino-3-hydroxypropyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1H-imidazol-2-ylmethyl)azetidin-3-ol; 3-(1-aminocyclopentyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-(2-aminocyclohexyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 3-(2-aminocyclopentyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-azetidin-3-ol; 1-({2-[(4-bromo-2-fluorophenyl)amino]-3,4-difluorophenyl}carbonyl)-3-piperidin-2-ylazetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(3-methyl-1-nitrobutyl)azetidin-3-ol; 3-(2-aminopyrimidin-4-yl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(1S,2S)-2-hydroxycyclohexyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(1 S,2R)-2-hydroxycyclohexyl]azetidin-3-ol; 1-({3-fluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({4-fluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(6-methylpiperidin-2-yl)azetidin-3-ol; and 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-piperazin-2-ylazetidin-3-ol; (±)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(trans)-2-hydroxycyclohexyl]azetidin-3-ol; (±)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(cis)-2-hydroxycyclohexyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(1S)-1-(methylamino)ethyl]azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1H-imidazol-2-yl)azetidin-3-ol; 1-({4-[(2-fluoro-4-iodophenyl)amino]-3-thienyl}carbonyl)azetidin-3-amine; 3-[(dimethylamino)methyl]-1-({4-[(2-fluoro-4-iodophenyl)amino]-3-thienyl}carbonyl)azetidin-3-ol; 3-[(1S)-1-aminoethyl]-1-({8-fluoro-7-[(2-fluoro-4-iodophenyl)amino]imidazo[1,2-a]pyridin-6-yl}carbonyl)azetidin-3-ol; 1-({8-fluoro-7-[(2-fluoro-4-iodophenyl)amino]imidazo[1,2-a]pyridin-6-yl}carbonyl)-3-[(1S)-1-(methylamino)ethyl]azetidin-3-ol; 3-(1H-benzimidazol-2-yl)-1-({8-fluoro-7-[(2-fluoro-4-iodophenyl)amino]imidazo[1,2-a]pyridin-6-yl}carbonyl)azetidin-3-ol; 3-(1H-benzimidazol-2-yl)-1-({7-[(4-bromo-2-fluorophenyl)amino]-8-fluoroimidazo[1,2-a]pyridin-6-yl}carbonyl)azetidin-3-ol; 3-{[(1,1-dimethylethyl)amino]methyl}-1-({4-[(2-fluoro-4-iodophenyl)amino]-3-thienyl}carbonyl)azetidin-3-ol; 3-(1-aminoethyl)-1-({8-chloro-7-[(2-fluoro-4-iodophenyl)amino]imidazo[1,2-a]pyridin-6-yl}carbonyl)azetidin-3-ol; 1-({8-fluoro-7-[(2-fluoro-4-iodophenyl)amino]imidazo[1,2-a]pyridin-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({8-fluoro-7-[(2-fluoro-4-iodophenyl)amino]imidazo[1,2-a]pyridin-6-yl}carbonyl)-3-{(1S)-1-[(2-hydroxy-2-methylcyclopentyl)amino]ethyl}azetidin-3-ol; 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1H-imidazol-2-yl)azetidin-3-ol; 1-({2-fluoro-3-[(2-fluoro-4-iodophenyl)amino]pyridin-4-yl}carbonyl)-3-[(2S)-pyrrolidin-2-yl]azetidin-3-ol; 1-({8-fluoro-7-[(2-fluoro-4-iodophenyl)amino]-4-methylcinnolin-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({4-fluoro-5-[(2-fluoro-4-iodophenyl)amino]-1-methyl-1H-benzimidazol-6-yl}carbonyl)-3-piperidin-2-ylazetidin-3-ol; 1-({5-[(4-bromo-2-chlorophenyl)amino]-4-fluoro-1-methyl-1H-benzimidazol-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({8-chloro-7-[(2-fluoro-4-iodophenyl)amino]imidazo[1,2-a]pyridin-6-yl}carbonyl)-3-piperidin-2-ylazetidin-3-ol; 1-({7-[(4-bromo-2-fluorophenyl)amino]-8-fluoroimidazo[1,2-a]pyridin-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({7-[(4-bromo-2-chlorophenyl)amino]-8-chloroimidazo[1,2-a]pyridin-6-yl}carbonyl)-3-piperidin-2-ylazetidin-3-ol; 1-({8-chloro-7-[(2-fluoro-4-iodophenyl)amino]imidazo[1,2-a]pyridin-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({7-[(4-bromo-2-chlorophenyl)amino]-8-chloroimidazo[1,2-a]pyridin-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({4-fluoro-5-[(2-fluoro-4-iodophenyl)amino]-1-methyl-1H-benzimidazol-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 3-[(1S)-1-aminoethyl]-1-({5-[(4-bromo-2-chlorophenyl)amino]-4-fluoro-1-methyl-1H-benzimidazol-6-yl}carbonyl)azetidin-3-ol; 1-({5-[(4-bromo-2-chlorophenyl)amino]-4-fluoro-1-methyl-1H-benzimidazol-6-yl}carbonyl)-3-[(1S)-1-(methylamino)ethyl]azetidin-3-ol; 4-[(4-bromo-2-fluorophenyl)amino]-3-fluoro-5-({3-hydroxy-3-[(2S)-piperidin-2-yl]azetidin-1-yl}carbonyl)pyridin-2(1H)-one; 4-[(2-fluoro-4-iodophenyl)amino]-5-({3-hydroxy-3-[(2S)-piperidin-2-yl]azetidin-1-yl}carbonyl)-1-methylpyridin-2(1H)-one; 4-[(2-fluoro-4-iodophenyl)amino]-5-({3-hydroxy-3-[(2S)-piperidin-2-yl]azetidin-1-yl}carbonyl)-1-methylpyridin-2(1H)-one; 4-[(2-fluoro-4-iodophenyl)amino]-5-({3-hydroxy-3-[(1S)-1-(methylamino)propyl]azetidin-1-yl}carbonyl)-1-methylpyridin-2(1H)-one; 5-({3-[(1S)-1-(dimethylamino)ethyl]-3-hydroxyazetidin-1-yl}carbonyl)-4-[(2-fluoro-4-iodophenyl)amino]-1-methylpyridin-2(1H)-one; 4-[(2-fluoro-4-iodophenyl)amino]-5-({3-hydroxy-3-[(methylamino)methyl]azetidin-1-yl}carbonyl)-1-methylpyridin-2(1H)-one; 5-{[3-(1H-benzimidazol-2-yl)-3-hydroxyazetidin-1-yl]carbonyl}-4-[(4-bromo-2-fluorophenyl)amino]-1-methylpyridin-2(1H)-one; 4-[(4-bromo-2-fluorophenyl)amino]-5-{[3-hydroxy-3-(1-methyl-1H-benzimidazol-2-yl)azetidin-1-yl]carbonyl}-1-methylpyridin-2(1H)-one; 4-[(4-bromo-2-fluorophenyl)amino]-5-({3-hydroxy-3-[(2S)-pyrrolidin-2-yl]azetidin-1-yl}carbonyl)-1-methylpyridin-2 (1H)-one; 1-({6-[(4-bromo-2-chlorophenyl)amino]-7-fluoro-3-methyl-1,2-benzisoxazol-5-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 5-[(2-fluoro-4-iodophenyl)amino]-6-({3-hydroxy-3-[(2S)-piperidin-2-yl]azetidin-1-yl}carbonyl)-2-methylpyridazin-3(2H)-one; 5-[(4-bromo-2-chlorophenyl)amino]-6-({3-hydroxy-3-[(2S)-piperidin-2-yl]azetidin-1-yl}carbonyl)-2-methylpyridazin-3(2H)-one; 5-[(4-bromo-2-chlorophenyl)amino]-4-fluoro-6-({3-hydroxy-3-[(2S)-pyrrolidin-2-yl]azetidin-1-yl}carbonyl)-2-methylpyridazin-3(2H)-one; 5-[(4-bromo-2-chlorophenyl)amino]-4-fluoro-6-({3-hydroxy-3-[(2R)-pyrrolidin-2-yl]azetidin-1-yl}carbonyl)-2-methylpyridazin-3(2H)-one; 6-({3-[(1S)-1-aminoethyl]-3-hydroxyazetidin-1-yl}carbonyl)-5-[(2-fluoro-4-iodophenyl)amino]-2-methylpyridazin-3(2H)-one; 6-({3-[(1S)-1-aminoethyl]-3-hydroxyazetidin-1-yl}carbonyl)-5-[(4-bromo-2-chlorophenyl)amino]-2-methylpyridazin-3(2H)-one; 5-[(4-bromo-2-chlorophenyl)amino]-6-{[3-((1S)-1-{[(3R,4S)-3,4-dihydroxycyclopentyl]amino}ethyl)-3-hydroxyazetidin-1-yl]carbonyl}-2-methylpyridazin-3(2H)-one; 5-[(4-bromo-2-fluorophenyl)amino]-6-[(3-hydroxy-3-{(1S)-1-[(2-hydroxy-2-methylcyclopentyl)amino]propyl}azetidin-1-yl)carbonyl]-2-methylpyridazin-3(2H)-one; 6-({3-[(1S)-1-aminopropyl]-3-hydroxyazetidin-1-yl}carbonyl)-5-[(4-bromo-2-fluorophenyl)amino]-2-methylpyridazin-3(2H)-one; 6-{[3-(1H-benzimidazol-2-yl)-3-hydroxyazetidin-1-yl]carbonyl}-5-[(2-fluoro-4-iodophenyl)amino]-2-methylpyridazin-3(2H)-one; 5-[(2-fluoro-4-iodophenyl)amino]-6-{[3-hydroxy-3-(1-methyl-1H-benzimidazol-2-yl)azetidin-1-yl]carbonyl}-2-methylpyridazin-3(2H)-one; 1-({2-fluoro-3-[(2-fluoro-4-iodophenyl)amino]pyridin-4-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({3-[(2-fluoro-4-iodophenyl)amino]pyridin-4-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({3-[(2-fluoro-4-iodophenyl)amino]-1-oxidopyridin-4-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({2-fluoro-3-[(2-fluoro-4-bromophenyl)amino]pyridin-4-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 3-[(1S)-1-aminopropyl]-1-({3-[(2-fluoro-4-iodophenyl)amino]pyridin-4-yl}carbonyl)azetidin-3-ol; 1-({3-[(2-fluoro-4-iodophenyl)amino]pyridin-4-yl}carbonyl)-3-[(1S)-1-(methylamino)propyl]azetidin-3-ol; (1R,2S)-4-(1(1S)-1-[1-({2-fluoro-3-[(2-fluoro-4-iodophenyl)amino]pyridin-4-yl]carbonyl)-3-hydroxyazetidin-3-yl]propyl}amino)cyclopentane-1,2-diol; 1-({7-[(4-bromo-2-chlorophenyl)amino]-8-fluoro-4-methylcinnolin-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({7-[(4-bromo-2-fluorophenyl)amino]-8-fluoro-4-methylcinnolin-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 3-[(1S)-1-aminoethyl]-1-({7-[(4-bromo-2-fluorophenyl)amino]cinnolin-6-yl}carbonyl)azetidin-3-ol; 1-({7-[(4-bromo-2-fluorophenyl)amino]cinnolin-6-yl]carbonyl)-3-1(1S)-1-[(2-hydroxy-2-methylcyclopentyl)amino]ethyl}azetidin-3-ol; 1-({7-[(4-bromo-2-fluorophenyl)amino]cinnolin-6-yl}carbonyl)-3-[(1S)-1-(dimethylamino)ethyl]azetidin-3-ol; 3-[(1S)-1-aminoethyl]-1-({5-[(2-fluoro-4-iodophenyl)amino]-1H-1,2,3-benzotriazol-6-yl}carbonyl)azetidin-3-ol; 3-[(1S)-1-(dimethylamino)ethyl]-1-({5-[(2-fluoro-4-iodophenyl)amino]-1-methyl-1H-1,2,3-benzotriazol-6-yl}carbonyl)azetidin-3-ol; 1-({5-[(2-fluoro-4-iodophenyl)amino]-1H-1,2,3-benzotriazol-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({5-[(2-fluoro-4-iodophenyl)amino]-1-methyl-1H-1,2,3-benzotriazol-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 1-({5-[(2-fluoro-4-iodophenyl)amino]-1H-1,2,3-benzotriazol-6-yl}carbonyl)-3-{(1S)-1-[(2-hydroxy-2-methyl cyclopentyl)amino]ethyl}azetidin-3-ol; 3-[(1S)-1-aminoethyl]-1-({4-fluoro-5-[(2-fluoro-4-iodophenyl)amino]-1H-1,2,3-benzotriazol-6-yl}carbonyl)azetidin-3-ol; 1-({4-fluoro-5-[(2-fluoro-4-iodophenyl)amino]-1H-1,2,3-benzotriazol-6-yl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol; 5-({3-[(1S)-1-aminoethyl]-3-hydroxyazetidin-1-yl}carbonyl)-6-[(2-fluoro-4-iodophenyl)amino]pyrimidin-2(1H)-one; 6-[(2-fluoro-4-iodophenyl)amino]-5-({3-hydroxy-3-[(2S)-piperidin-2-yl]azetidin-1-yl}carbonyl)pyrimidin-2(1H)-one; 4-[(2-fluoro-4-iodophenyl)amino]-5-({3-hydroxy-3-[(2S)-piperidin-2-yl]azetidin-1-yl}carbonyl)pyrimidin-2(1H)-one; and 5-({3-[(1S)-1-aminoethyl]-3-hydroxyazetidin-1-yl}carbonyl)-4-[(2-fluoro-4-iodophenyl)amino]pyrimidin-2(1H)-one. 39. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-pyrrolidin-2-ylazetidin-3-ol. 40. The method of claim 38 wherein the compound of formula I is named (R)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-pyrrolidin-2-ylazetidin-3-ol. 41. The method of claim 38 wherein the compound of formula I is named (S)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-pyrrolidin-2-ylazetidin-3-ol. 42. The method of claim 38 wherein the compound of formula I is named (3-(1-aminopropyl)-3-hydroxyazetidin-1-yl)(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)methanone. 43. The method of claim 38 wherein the compound of formula I is named (R)-(3-(1-aminopropyl)-3-hydroxyazetidin-1-yl)(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)methanone. 44. The method of claim 38 wherein the compound of formula I is named (S)-(3-(1-aminopropyl)-3-hydroxyazetidin-1-yl)(3,4-difluoro-2-(2-fluoro-4-iodophenylamino)phenyl)methanone. 45. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[1-(methylamino)ethyl]azetidin-3-ol. 46. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(1S)-1-(methylamino)ethyl]azetidin-3-ol. 47. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[piperidin-2-yl]azetidin-3-ol. 48. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2R)-piperidin-2-yl]azetidin-3-ol. 49. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol. 50. The method of claim 38 wherein the compound of formula I is named (±)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(cis)-2-hydroxycyclohexyl]azetidin-3-ol. 51. The method of claim 38 wherein the compound of formula I is named (±)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(trans)-2-hydroxycyclohexyl]azetidin-3-ol. 52. The method of claim 38 wherein the compound of formula I is named 3-(1-aminoethyl)-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol. 53. The method of claim 38 wherein the compound of formula I is named 3-[(1R)-1-aminoethyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol. 54. The method of claim 38 wherein the compound of formula I is named 3-[(1S)-1-aminoethyl]-1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)azetidin-3-ol. 55. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(pyrrolidin-1-ylmethyl)azetidin-3-ol. 56. The method of claim 38 wherein the compound of formula I is named 1-{[1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-hydroxyazetidin-3-yl]methyl}piperidin-4-ol. 57. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-N-methylazetidin-3-amine. 58. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-{[(methyloxy)amino]methyl}azetidin-3-ol. 59. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-(1-methylpyrrolidin-2-yl)azetidin-3-ol, optionally as a pharmaceutically acceptable salt thereof. 60. The method of claim 38 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-piperazin-2-ylazetidin-3-ol. 61. The method of claim 2 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[piperidin-2-yl]azetidin-3-ol. 62. The method of claim 2 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2R)-piperidin-2-yl]azetidin-3-ol. 63. The method of claim 2 wherein the compound of formula I is named 1-({3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl}carbonyl)-3-[(2S)-piperidin-2-yl]azetidin-3-ol.