Claims for Patent: 9,775,915

Summary for Patent: 9,775,915

Title:	Trioxacarcins, trioxacarcin-antibody conjugates, and uses thereof
Abstract:	Provided herein are trioxacarcin-antibody drug conjugates of Formula (A): and pharmaceutically acceptable salts thereof, comprising at least one instance of the group -L.sup.1-(A-L.sup.2)a-B attached thereto, wherein a is an integer between 1 and 10, inclusive, L.sup.1 is absent or is a linking group, A is a moiety formed from the reaction of two complimentary groups (X and Y), L.sup.2 is absent or is another linking group, and B is an antibody or antibody fragment. Also provided are methods of preparing these antibody-drug conjugates, pharmaceutically acceptable compositions thereof, and methods of their use and treatment. Further provided are precursors to the trioxacarcin-antibody drug conjugates, novel trioxacarcins without an antibody conjugated thereto, pharmaceutical compositions thereof, and methods of their use and treatment. ##STR00001##
Inventor(s):	Myers; Andrew G. (Boston, MA), Smaltz; Daniel J. (Cambridge, MA), Schumacher; Andreas (Bottmingen, CH)
Assignee:	President and Fellows of Harvard College (Cambridge, MA)
Application Number:	14/647,198
Patent Claims:	1. A compound of Formula (I): ##STR00197## or a pharmaceutically acceptable salt thereof; wherein: a is an integer between 1 and 10, inclusive; L.sup.1 is absent or is a linking group selected from the group consisting of substituted and unsubstituted alkylene; substituted and unsubstituted alkenylene; substituted and unsubstituted alkynylene; substituted and unsubstituted heteroalkylene; substituted and unsubstituted heteroalkenylene; substituted and unsubstituted heteroalkynylene; substituted and unsubstituted heterocyclylene; substituted and unsubstituted carbocyclylene; substituted and unsubstituted arylene; substituted and unsubstituted heteroarylene; peptidyl groups; dipeptidyl groups; polypeptidyl groups; and combinations thereof; L.sup.2 is absent or is a linking group selected from the group consisting of substituted and unsubstituted alkylene; substituted and unsubstituted alkenylene; substituted and unsubstituted alkynylene; substituted and unsubstituted heteroalkylene; substituted and unsubstituted heteroalkenylene; substituted and unsubstituted heteroalkynylene; substituted and unsubstituted heterocyclylene; substituted and unsubstituted carbocyclylene; substituted and unsubstituted arylene; substituted and unsubstituted heteroarylene; peptidyl groups; dipeptidyl groups; polypeptidyl groups; and combinations thereof; A is a group of the formula --NH--, --NH--NH--, --NH--O--, --O--NH--, --S--,--O--, ##STR00198## ##STR00199## Q is --NH--, --NH--NH--, --O--NH--, --NH--O--, --S--, or --O--; W is --O--, --S--, or --NR.sup.W1--, wherein R.sup.W1 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; or a nitrogen protecting group; R.sup.W2 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; or substituted or unsubstituted heteroaryl, or two R.sup.W2 groups are joined to form a 5-6 membered ring; B is an antibody or an antibody fragment; R.sup.1 is hydrogen or --OR.sup.A1; and R.sup.2 is hydrogen; or R.sup.1 and R.sup.2 are joined to form .dbd.O; R.sup.A1 is hydrogen; an oxygen protecting group; or substituted or unsubstituted alkyl; or R.sup.A1 is a group of Formula (i): ##STR00200## wherein each occurrence of R.sup.A3 , R.sup.A4 , R.sup.A5 , R.sup.A6 , and R.sup.A7 is independently hydrogen, substituted or unsubstituted alkyl; --OR.sup.A9 ; --OC(.dbd.O)R.sup.A9 ; --N(R.sup.A9).sub.2; or --NHC(.dbd.O)R.sup.A9 ; wherein each occurrence of R.sup.A9 is independently hydrogen; substituted or unsubstituted alkyl; an oxygen protecting group when attached to an oxygen atom; or a nitrogen protecting group when attached to a nitrogen atom; or two R.sup.A9 groups are joined to form a substituted or unsubstituted heterocyclic or substituted or unsubstituted heteroaryl ring; and M.sup.1 is --O--; R.sup.3 is hydrogen or --OR.sup.C1, wherein R.sup.C1 is hydrogen; an oxygen protecting group;or substituted or unsubstituted alkyl; R.sup.4 is hydrogen or --OR.sup.D1, wherein R.sup.D1 is hydrogen; an oxygen protecting group; or substituted or unsubstituted alkyl; R.sup.5 is hydrogen or --OR.sup.E1, wherein R.sup.E1 is hydrogen; an oxygen protecting group; or substituted or unsubstituted alkyl; R.sup.6 is substituted or unsubstituted alkyl; R.sup.7 is -L.sup.1-(A-L.sup.2).sub.a-B; R.sup.8 is --CH(OR.sup.I1).sub.2; each occurrence of R.sup.I1 is substituted or unsubstituted alkyl; wherein substituted, when on a carbon atom, independently refers to substitution with halogen, --CN, --NO.sub.2, --N.sub.3, --SO.sub.2H, --SO.sub.3H, --OH, --OR.sup.aa, --ON(R.sup.bb).sub.2, --N(R.sup.bb).sub.2, --N(R.sup.bb).sub.3.sup.+X.sup.-, --N(OR.sup.cc)R.sup.bb, --SH, --SR.sup.aa, --SSR.sup.cc, --C(.dbd.O)R.sup.aa, --CO.sub.2H, --CHO, --C(OR.sup.cc).sub.2, --CO.sub.2R.sup.aa, --OC(.dbd.O)R.sup.aa, --OCO.sub.2R.sup.aa, --C(.dbd.O)N(R.sup.bb).sub.2, --OC(.dbd.O)N(R.sup.bb).sub.2, --NR.sup.bbC(.dbd.O)R.sup.aa, --NR.sup.bbCO.sub.2R.sup.aa, --NR.sup.bbC(.dbd.O)N(R.sup.bb).sub.2, --C(.dbd.NR.sup.bb)R.sup.aa, --C(.dbd.NR.sup.bb)OR.sup.aa, --OC(.dbd.NR.sup.bb)R.sup.aa, --OC(.dbd.NR.sup.bb)OR.sup.aa, --C(.dbd.NR.sup.bb)N(R.sup.bb).sub.2, --OC(.dbd.NR.sup.bb)N(R.sup.bb).sub.2, --NR.sup.bbC(.dbd.NR.sup.bb)N(R.sup.bb).sub.2, --C(.dbd.O)NR.sup.bbSO.sub.2R.sup.aa, --NR.sup.bbSO.sub.2R.sup.aa, --SO.sub.2N(R.sup.bb).sub.2, --SO.sub.2R.sup.aa, --SO.sub.2OR.sup.aa, --OSO.sub.2R.sup.aa, --S(.dbd.O)R.sup.aa, --OS(.dbd.O)R.sup.aa, --Si(R.sup.aa).sub.3, --OSi(R.sup.aa).sub.3 --C(.dbd.S)N(R.sup.bb).sub.2, --C(.dbd.O)SR.sup.aa, --C(.dbd.S)SR.sup.aa, --SC(.dbd.S)SR.sup.aa, --SC(.dbd.O)SR.sup.aa, --OC(.dbd.O)SR.sup.aa, --SC(.dbd.O)OR.sup.aa, --SC(.dbd.O)R.sup.aa, C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, or 5-14 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; or two geminal hydrogens on a carbon atom are replaced with the group .dbd.O, .dbd.S, .dbd.NN(R.sup.bb).sub.2, .dbd.NNR.sup.bbC(.dbd.O)R.sup.aa, .dbd.NNR.sup.bbC(.dbd.O)OR.sup.aa, .dbd.NNR.sup.bbS(.dbd.O).sub.2R.sup.aa, .dbd.NR.sup.bb, or .dbd.NOR.sup.cc; and wherein substituted, when on a nitrogen atom, independently refers to substitution with --OH, --OR.sup.aa, --N(R.sup.cc).sub.2, --CN, --C(.dbd.O)R.sup.aa, --C(.dbd.O)N(R.sup.cc).sub.2, --CO.sub.2R.sup.aa, --SO.sub.2R.sup.aa, --C(.dbd.NR.sup.bb)R.sup.aa, --C(.dbd.NR.sup.cc)OR.sup.aa, --C(.dbd.NR.sup.cc)N(R.sup.cc).sub.2, --SO.sub.2N(R.sup.cc).sub.2, --SO.sub.2R.sup.cc, --SO.sub.2OR.sup.cc, --SOR.sup.aa, --C(.dbd.S)N(R.sup.cc).sub.2, --C(.dbd.O)SR.sup.cc, --C(.dbd.S)SR.sup.cc, C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, or 5-14 membered heteroaryl, or two R.sup.cc groups attached to an N atom are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; each instance of R.sup.aa is, independently, selected from C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, and 5-14 membered heteroaryl, or two R.sup.aa groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; each instance of R.sup.bb is, independently, selected from hydrogen, --OH, --OR.sup.aa, --N(R.sup.cc ).sub.2, --CN, --C(.dbd.O)R.sup.aa, --C(.dbd.O )N(R.sup.cc).sub.2, --CO.sub.2R.sup.aa, --SO.sub.2R.sup.aa, --C(.dbd.NR.sup.cc)OR.sup.aa, --C(.dbd.NR.sup.cc)N(R.sup.cc).sub.2, --SO.sub.2N(R.sup.cc).sub.2, --SO.sub.2R.sup.cc, --SO.sub.2OR.sup.cc, --SOR.sup.aa, --C(.dbd.S)N(R.sup.cc).sub.2, --C(.dbd.O)SR.sup.cc, --C(.dbd.S)SR.sup.cc, C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, and 5-14 membered heteroaryl, or two R.sup.bb groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; each instance of R.sup.cc is, independently, hydrogen, C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, or 5-14 membered heteroaryl, or two R.sup.cc groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; each instance of R.sup.dd is, independently, halogen, --CN, --NO.sub.2, --N.sub.3, --SO.sub.2H, --SO.sub.3H, --OH, --OR.sup.ee, --ON(R.sup.ff).sub.2, --N(R.sup.ff).sub.2, --N(R.sup.ff).sub.3.sup.+X.sup.-, --N(OR.sup.ee)R.sup.ff, --SH, --SR.sup.ee, --SSR.sup.ee, --C(.dbd.O)R.sup.ee, --CO.sub.2H, --CO.sub.2R.sup.ee, --OC(.dbd.O)R.sup.ee, --OCO.sub.2R.sup.ee, --C(.dbd.O)N(R.sup.ff).sub.2, --OC(.dbd.O)N(R.sup.ff).sub.2, --NR.sup.ffC(.dbd.O)R.sup.ee ,--NR.sup.ff CO.sub.2R.sup.ee, --NR.sup.ffC(.dbd.O)N(R.sup.ff).sub.2, --C(.dbd.NR.sup.ff)OR.sup.ee, --OC(.dbd.NR.sup.ff)R.sup.ee, --OC(.dbd.NR.sup.ff)OR.sup.ee, --C(.dbd.NR.sup.ff)N(R.sup.ff).sub.2, --OC(.dbd.NR.sup.ff)N(R.sup.ff).sub.2, --NR.sup.ffC(.dbd.NR.sup.ff)N(R.sup.ff).sub.2, --NR.sup.ffSO.sub.2R.sup.ee, --SO.sub.2N(R.sup.ff).sub.2, --SO.sub.2R.sup.ee, --SO.sub.2OR.sup.ee, --OSO.sub.2R.sup.ee, --S(.dbd.O)R.sup.ee, --Si(R.sup.ee).sub.3, --OSi(R.sup.ee).sub.3, --C(.dbd.S)N(R.sup.ff).sub.2, --C(.dbd.O)SR.sup.ee, --C(.dbd.S)SR.sup.ee, --SC(.dbd.S)SR.sup.ee, C.sub.1-6 alkyl, C.sub.1-6 perhaloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-10 carbocyclyl, 3-10 membered heterocyclyl, C.sub.6-10 aryl, or 5-10 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.gg groups, or two geminal R.sup.dd substituents can be joined to form .dbd.O or .dbd.S; each instance of R.sup.ee is, independently, C.sub.1-6 alkyl, C.sub.1-6 perhaloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-10 carbocyclyl, C.sub.6-10 aryl, 3-10 membered heterocyclyl, or 3-10 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.gg groups; each instance of R.sup.ff is, independently, hydrogen, C.sub.1-6 alkyl, C.sub.1-6 perhaloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-10 carbocyclyl, 3-10 membered heterocyclyl, C.sub.6-10 aryl, or 5-10 membered heteroaryl, or two R.sup.ff groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.gg groups; and each instance of R.sup.gg is, independently, halogen, --CN, --NO.sub.2, --N.sub.3, --SO.sub.2H, --SO.sub.3H, --OH, --OC.sub.1-6 alkyl, --ON(C.sub.1-6 alkyl).sub.2, --N(C.sub.1-6 alkyl).sub.2, --N(C.sub.1-6 alkyl).sub.3.sup.+X.sup.-, --NH(C.sub.1-6 alkyl).sub.2.sup.+X.sup.-, --NH.sub.2(C.sub.1-6 alkyl) .sup.+X.sup.-, --NH.sub.3.sup.+X.sup.-, --N(OC.sub.1-6 alkyl)(C.sub.1-6 alkyl), --N(OH)(C.sub.1-6 alkyl), --NH(OH), --SH, --SC.sub.1-6 alkyl, --SS(C.sub.1-6 alkyl), --C(.dbd.O)(C.sub.1-6 alkyl), --CO.sub.2H, --CO.sub.2(C.sub.1-6 alkyl), --OC(.dbd.O)(C.sub.1-6 alkyl), --OCO.sub.2(C.sub.1-6 alkyl), --C(.dbd.O)NH.sub.2, --C(.dbd.O)N(C.sub.1-6 alkyl).sub.2, --OC(.dbd.O)NH(C.sub.1-6 alkyl), --NHC(.dbd.O)(C.sub.1-6 alkyl), --N(C.sub.1-6 alkyl)C(.dbd.O)(C.sub.1-6 alkyl), --NHCO.sub.2(C.sub.1-6 alkyl), --NHC(.dbd.O)N(C.sub.1-6 alkyl).sub.2, --NHC(.dbd.O)NH(C.sub.1-6 alkyl), --NHC(.dbd.O)NH.sub.2, --C(.dbd.NH)O(C.sub.1-6 alkyl),--OC(.dbd.NH)(C.sub.1-6 alkyl), --OC(.dbd.NH)OC.sub.1-6 alkyl, --C(.dbd.NH)N(C.sub.1-6 alkyl).sub.2, --C(.dbd.NH)NH(C.sub.1-6 alkyl), --C(.dbd.NH)NH.sub.2, --OC(.dbd.NH)N(C.sub.1-6 alkyl).sub.2, --OC(NH)NH(C.sub.1-6 alkyl), --OC(NH)NH.sub.2,--NHC(NH)N(C.sub.1-6 alkyl).sub.2, --NHC(.dbd.NH)NH.sub.2, --NHSO.sub.2(C.sub.1-6 alkyl), --SO.sub.2N(C.sub.1-6 alkyl).sub.2, --SO.sub.2NH(C.sub.1-6 alkyl), --SO.sub.2NH.sub.2,--SO.sub.2C.sub.1-6 alkyl, --SO.sub.2OC.sub.1-6 alkyl, --OSO.sub.2C.sub.1-6 alkyl, --SOC.sub.1-6 alkyl, --Si(C.sub.1-6 alkyl).sub.3, --OSi(C.sub.1-6 alkyl).sub.3 --C(.dbd.S)N(C.sub.1-6 alkyl).sub.2, C(.dbd.S)NH(C.sub.1-6 alkyl), C(.dbd.S)NH.sub.2, --C(.dbd.O)S(C.sub.1-6 alkyl), --C(.dbd.S)SC.sub.1-6 alkyl, --SC(.dbd.S)SC.sub.1-6 alkyl, C.sub.1-6 alkyl, C.sub.1-6 perhaloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-10 carbocyclyl, C.sub.6-10 aryl, 3-10 membered heterocyclyl, or 5-10 membered heteroaryl; or two geminal R.sup.gg substituents can be joined to form .dbd.0 or .dbd.S; wherein X.sup.- is a counterion. 2. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein L.sup.1 is absent or is a linking group consisting of one or more groups of the formula: ##STR00201## ##STR00202## ##STR00203## wherein: n is an integer between 1 to 10, inclusive; x is 0, 1 or 2; z is 1 or 2; Q is --NH--, --NH--NH--, --O--NH--,--NH--O--,--S--, --O--; W is O, S, or NR.sup.w1; R.sup.W1 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; or a nitrogen protecting group; R.sup.W2 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; or substituted or unsubstituted heteroaryl; or two R.sup.W2 groups are joined to form a 5-6 membered ring; and each instance of R.sup.W3 is independently hydrogen; halogen; substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; or substituted or unsubstituted heteroaryl, or two R.sup.W3 groups are joined to form a 3-6membered ring; or R.sup.W1 and R.sup.W3 are joined to form a 5-6 membered heterocyclic ring. 3. The compound of claim 2, or a pharmaceutically acceptable salt thereof, wherein L.sup.1 is absent or is a linking group consisting of one or more groups of the formula: ##STR00204## ##STR00205## 4. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein L.sup.2 is absent or is a linking group consisting of one or more groups of the formula: ##STR00206## ##STR00207## ##STR00208## wherein: n is an integer between 1 to 10, inclusive; x is 0, 1 or 2; z is 1 or 2; Q is --NH--, --NH--NH--, --O--NH--,--NH--O--, --S--, or --O--; W is O, S, or NR.sup.w1; R.sup.W1 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; or a nitrogen protecting group; R.sup.W2 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; or substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; or two R.sup.W2 groups are joined to form a 5-6 membered ring; and each instance of R.sup.W3 is independently hydrogen; halogen; substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; or substituted or unsubstituted heteroaryl, or two R.sup.W3 groups are joined to form a 3-6 membered ring; or R.sup.W1 and R.sup.W3 are joined to form a 5-6 membered heterocyclic ring. 5. The compound of claim 1 of Formula (I-a): ##STR00209## or a pharmaceutically acceptable salt thereof. 6. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R.sup.1 is hydrogen or --OR.sup.A1;and R.sup.2 is hydrogen. 7. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R.sup.1 and R.sup.2 are joined to form .dbd.O. 8. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R.sup.3 is hydrogen. 9. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R.sup.1, R.sup.2, and R.sup.3 are each hydrogen. 10. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R.sup.4 is --OCH.sub.3. 11. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R.sup.5 is --OH. 12. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R.sup.6 is --CH.sub.3. 13. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein R.sup.8 is --CH(OCH.sub.3).sub.2. 14. The compound of claim 1, or a pharmaceutically acceptable salt thereof, wherein B is an antibody selected from the group consisting of Adecatumumab, Afutuzumab, Alemtuzumab (CAMPATH), Bavituximab, Belimumab, Bevacizumab (AVASTIN), Brentuximab, Cantuzumab, Cetuximab (ERBITUX), Citatuzumab, Cixutumumab, Conatumumab, Dacetuzumab, Elotuzumab, Etaracizumab, Farletuzumab, Figitumumab, Gemtuzumab, Ibritumomab, Inotuzumab, Ipilimumab (YERVOY), Iratumumab, Labetuzumab, Lexatumumab, Lintuzumab, Lucatumumab, Mapatumumab, Matuzumab, Milatuzumab, Necitumumab, Nimotuzumab, Ofatumumab (ARZERRA), Olaratumab, Oportuzumab, Panitumumab (VECTIBIX), Pertuzumab (PERJETA), Pritumumab, Rituximab (RITUXAN), Robatumumab, Sibrotuzumab, Siltuximab, Tacatuzumab, Tigatuzumab, Tositumomab (BEXXAR), Trastuzumab (HERCEPTIN), Tucotuzumab, Veltuzumab, Votumumab, Zalutumumab, and antibody fragments thereof. 15. A pharmaceutical composition comprising a compound of claim 1 or pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable excipient. 16. A method of treating a condition selected from the group consisting of proliferative diseases, inflammatory diseases, autoimmune diseases, and infectious diseases from which a subject is suffering from, comprising administering to the subject an amount of a compound of claim 1 or pharmaceutically acceptable salt thereof, effective to treat the condition. 17. The method of claim 16, wherein the proliferative disease is a cancer. 18. A method of preparing a compound of Formula (I) of claim 1: ##STR00210## or a pharmaceutically acceptable salt thereof, the method comprising coupling a compound of Formula (PI): ##STR00211## or a salt thereof, with (i) a compound of formula Y-L.sup.2-X, followed by coupling with a compound of formula Y-L.sup.2-B, or with (ii) a compound of formula Y-L.sup.2-B; wherein: each of X and Y are independently selected from the group consisting of --SH, --OH, --NH.sub.2, --NH--NH.sub.2, --N.sub.3, --O--NH.sub.2, halogen (or other leaving group), --C(.dbd.O)R.sup.X1, ##STR00212## wherein: R.sup.X1 is hydrogen, halogen, or --OR.sup.X2 , wherein R.sup.X2 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; or an oxygen protecting group; W is O, S, or NR.sup.W1; R.sup.W1 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; or a nitrogen protecting group; R.sup.W2 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; or substituted or unsubstituted heteroaryl, or two R.sup.W2 groups are joined to form a 5-6 membered ring; a is an integer between 1 and 10, inclusive; L.sup.1 is absent or is a linking group selected from the group consisting of substituted and unsubstituted alkylene; substituted and unsubstituted alkenylene; substituted and unsubstituted alkynylene; substituted and unsubstituted heteroalkylene; substituted and unsubstituted heteroalkenylene; substituted and unsubstituted heteroalkynylene; substituted and unsubstituted heterocyclylene; substituted and unsubstituted carbocyclylene; substituted and unsubstituted arylene; substituted and unsubstituted heteroarylene; peptidyl groups; dipeptidyl groups; polypeptidyl groups; and combinations thereof; L.sup.2 is absent or is a linking group selected from the group consisting of substituted and unsubstituted alkylene; substituted and unsubstituted alkenylene; substituted and unsubstituted alkynylene; substituted and unsubstituted heteroalkylene; substituted and unsubstituted heteroalkenylene; substituted and unsubstituted heteroalkynylene; substituted and unsubstituted heterocyclylene; substituted and unsubstituted carbocyclylene; substituted and unsubstituted arylene; substituted and unsubstituted heteroarylene; peptidyl groups; dipeptidyl groups; polypeptidyl groups; and combinations thereof; A is a group of the formula --NH--, --NH--NH--, --NH--O--, --O--NH --, --S--, --O--, ##STR00213## ##STR00214## Q is --NH--, --NH--NH--, --O--NH--, --NH--O--, --S--, or --O--; W is --O--, --S--, or --NR.sup.W1--, wherein R.sup.W1 is hydrogen, substituted or unsubstituted alkyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; or a nitrogen protecting group; R.sup.W2 is hydrogen, substituted or unsubstituted alkyl; or substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted carbocyclyl; substituted or unsubstituted heterocyclyl; substituted or unsubstituted aryl; or substituted or unsubstituted heteroaryl, or two R.sup.W2 groups are joined to form a 5-6 membered ring; B is an antibody or an antibody fragment; R.sup.1 is hydrogen or --OR.sup.A1; and R.sup.2 is hydrogen; or R.sup.1 and R.sup.2 are joined to form .dbd.O; R.sup.A1 is hydrogen; an oxygen protecting group or substituted or unsubstituted alkyl; or R.sup.A1 is a group of Formula (i): ##STR00215## wherein each occurrence of R.sup.A3 ,R.sup.A4 ,R.sup.A5,R.sup.A6, and R.sup.A7 is independently hydrogen, substituted or unsubstituted alkyl; --OR.sup.A9; --OC(.dbd.O)R.sup.A9; --N(R.sup.A9).sub.2; or --NHC(.dbd.O)R.sup.A9; wherein each occurrence of R.sup.A9 is independently hydrogen; substituted or unsubstituted alkyl; an oxygen protecting group when attached to an oxygen atom; or a nitrogen protecting group when attached to a nitrogen atom; or two R.sup.A9 groups are joined to form a substituted or unsubstituted heterocyclic or substituted or unsubstituted heteroaryl ring; and M.sup.1 is --O--; R.sup.3 is hydrogen or --OR.sup.C1, wherein R.sup.C1 is hydrogen; an oxygen protecting group; or substituted or unsubstituted alkyl; R.sup.4 is hydrogen or --OR.sup.D1, wherein R.sup.D1 is hydrogen; an oxygen protecting group; or substituted or unsubstituted alkyl; R.sup.5 is hydrogen or --OR.sup.E1,wherein R.sup.E1 is hydrogen; an oxygen protecting group; or substituted or unsubstituted alkyl; R.sup.6 is substituted or unsubstituted alkyl; R.sup.7 is -L.sup.1-(A-L.sup.2).sub.a-B for Formula (I), or a group -L.sup.1-X for Formula (P-I); R.sup.8 is --CH(OR.sup.I1).sub.2; each occurrence of R.sup.I1 is independently substituted or unsubstituted alkyl; wherein substituted, when on a carbon atom, independently refers to substitution with halogen, --CN, --NO.sub.2, --N.sub.3, --SO.sub.2H, --SO.sub.3H, --OH, --OR.sup.aa, --ON(R.sup.bb).sub.2, --N(R.sup.bb).sub.2, --N(R.sup.bb).sub.3.sup.+X.sup.-, --N(OR.sup.cc)R.sup.bb, --SH, --SR.sup.aa, --SSR.sup.cc,--C(.dbd.O)R.sup.aa, --CO.sub.2H, --CHO, --C(OR.sup.cc).sub.2, --CO.sub.2R.sup.aa, --OC(.dbd.OR.sup.aa, --OCO.sub.2R.sup.aa, --C(.dbd.O)N(R.sup.bb).sub.2, --OC(.dbd.O)N(R.sup.bb).sub.2, --NR.sup.bbC(.dbd.O)R.sup.aa, --NR.sup.bbCO.sub.2R.sup.aa, --NR.sup.bbC(.dbd.O)N(R.sup.bb).sub.2, --C(.dbd.NR.sup.bb)R.sup.aa, --C(.dbd.NR.sup.bb)OR.sup.aa, --OC(.dbd.NR.sup.bb)R.sup.aa, --OC(.dbd.NR.sup.bb)OR.sup.aa,--C(.dbd.NR.sup.bb)N(R.sup.bb).sub.2, --OC(.dbd.NR.sup.bb)N(R.sub.bb).sub.2, --NR.sup.bbC(.dbd.NR.sup.bb)N(R.sup.bb).sub.2, --C(.dbd.O)NR.sup.bbSO.sub.2R.sup.aa, --NR.sup.bbSO.sub.2R.sup.aa, --SO.sub.2N(R.sup.bb).sub.2, --SO.sub.2R.sup.aa, --SO.sub.2OR.sup.aa,--OSO.sub.2R.sup.aa, --S(.dbd.O)R.sup.aa, --OS(.dbd.O)R.sup.aa, --Si(R.sup.aa).sub.3, --OSi(R.sup.aa).sub.3 --C(.dbd.S)N(R.sup.bb).sub.2, --C(.dbd.O)SR.sup.aa, --C(.dbd.S)SR.sup.aa, --SC(.dbd.S)SR.sup.aa, --SC(.dbd.O)SR.sup.aa, --OC(.dbd.O)SR.sup.aa, --SC(.dbd.O)OR.sup.aa, --SC(.dbd.O)R.sup.aa, C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, .sub.C2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, or 5-14 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; or two geminal hydrogens on a carbon atom are replaced with the group .dbd.O, .dbd.S, .dbd.NN(R.sup.bb).sub.2, .dbd.NNR.sup.bbC(.dbd.O)R.sup.aa, .dbd.NNR.sup.bbC(.dbd.O)OR.sup.aa, .dbd.NNR.sup.bbS(.dbd.O).sub.2R.sup.aa, .dbd.NR.sup.bb, or .dbd.NOR.sup.cc; and wherein substituted, when on a nitrogen atom, independently refers to substitution with --OH, --OR.sup.aa, --N(R.sup.cc).sub.2, --CN, --C(.dbd.O)R.sup.aa, --C(.dbd.O)N(R.sup.cc).sub.2, --CO.sub.2R.sup.aa, --SO.sub.2R.sup.aa, --C(.dbd.NR.sup.bb)R.sup.aa, --C(.dbd.NR.sup.cc)OR.sup.aa, --C(.dbd.NR.sup.cc)N(R.sup.cc).sub.2, --SO.sub.2N(R.sup.cc).sub.2, --SO.sub.2R.sup.cc, --SO.sub.2OR.sup.cc, --SOR.sup.aa, --C(.dbd.S)N(R.sup.cc).sub.2, --C(.dbd.O)SR.sup.cc, --C(.dbd.S)SR.sup.cc, C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, or 5-14 membered heteroaryl, or two R.sup.cc groups attached to an N atom are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; each instance of R.sup.aa is, independently, selected from C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, and 5-14 membered heteroaryl, or two R.sup.aa groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; each instance of R.sup.bb is, independently, selected from hydrogen, --OH, --OR.sup.aa, --N(R.sup.cc).sub.2, --CN, --C(.dbd.O)R.sup.aa, --C(.dbd.O)N(R.sup.cc).sub.2, --CO.sub.2R.sup.aa, --SO.sub.2R.sup.aa, --C(.dbd.NR.sup.cc)R.sup.aa, --C(.dbd.NR.sup.cc)N(R.sup.cc).sub.2, --SO.sub.2N(R.sup.cc).sub.2, --SO.sub.2R.sup.cc, --SO.sub.2OR.sup.cc, --SOR.sup.aa, --C(.dbd.S)N(R.sup.cc).sub.2, --C(.dbd.O)SR.sup.cc, --C(.dbd.S)SR.sup.cc, C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, and 5-14 membered heteroaryl, or two R.sup.bb groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; each instance of R.sup.cc is, independently, hydrogen, C.sub.1-10 alkyl, C.sub.1-10 perhaloalkyl, C.sub.2-10 alkenyl, C.sub.2-10 alkynyl, C.sub.3-10 carbocyclyl, 3-14 membered heterocyclyl, C.sub.6-14 aryl, or 5-14 membered heteroaryl, or two R.sup.cc groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.dd groups; each instance of R.sup.dd is, independently, halogen, --CN, --NO.sub.2, --N.sub.3, --SO.sub.2H, --SO.sub.3H, --OH, --OR.sup.ee, --ON(R.sup.ff).sub.2, --N(R.sup.ff).sub.2, --N(R.sup.ff).sub.3.sup.+X.sup.-, --N(OR.sup.ee)R.sup.ff, --SH, --SR.sup.ee, --SSR.sup.ee, --C(.dbd.O)R.sup.ee, --CO.sub.2H, --CO.sub.2R.sup.ee, --OC(.dbd.O)R.sup.ee, --OCO.sub.2R.sup.ee, --C(.dbd.O)N(R.sup.ff).sub.2, --OC(.dbd.O)N(R.sup.ff).sub.2, --NR.sup.ffC(.dbd.O)R.sup.ee, --NR.sup.ffCO.sub.2R.sup.ee, --NR.sup.ffC(.dbd.O)N(R.sup.ff).sub.2, --C(.dbd.NR.sup.ff)OR.sup.ee, --OC(=NR.sup.ff)R.sup.ee, --OC(.dbd.NR.sup.ff)OR.sup.ee, --C(.dbd.NR.sup.ff)N(R.sup.ff).sub.2, --OC(.dbd.NR.sup.ff)N(R.sup.ff).sub.2, --NR.sup.ffC(.dbd.NR.sup.ff)N(R.sup.ff).sub.2, --NR.sup.ffSO.sub.2R.sup.ee, --SO.sub.2N(R.sup.ff).sub.2, --SO.sub.2R.sup.ee, --SO.sub.2OR.sup.ee, --OSO.sub.2R.sup.ee, --S(.dbd.O)R.sup.ee, --Si(R.sup.ee).sub.3, --OSi(R.sup.ee).sub.3, --C(.dbd.S)N(R.sup.ff).sub.2, --C(.dbd.O)SR.sup.ee, --C(.dbd.S)SR.sup.ee, --SC(.dbd.S)SR.sup.ee, C.sub.1-6 alkyl, C.sub.1-6 perhaloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-10 carbocyclyl, 3-10 membered heterocyclyl, C.sub.6-10 aryl, or 5-10 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.gg groups, or two geminal R.sup.dd substituents can be joined to form .dbd.O or .dbd.S; each instance of R.sup.ee is, independently, C.sub.1-6 alkyl, C.sub.1-6 perhaloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-10 carbocyclyl, C.sub.6-10 aryl, 3-10 membered heterocyclyl, or 3-10 membered heteroaryl, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.gg groups; each instance of R.sup.ff is, independently, hydrogen, C.sub.1-6 alkyl, C.sub.1-6 perhaloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-10 carbocyclyl, 3-10 membered heterocyclyl, C.sub.6-10 aryl, or 5-10 membered heteroaryl, or two R.sup.ff groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R.sup.gg groups; and each instance of R.sup.gg is, independently, halogen, --CN, --NO.sub.2, --N.sub.3, --SO.sub.2H, --SO.sub.3H, --OH, --OC.sub.1-6 alkyl, --ON(C.sub.1-6 alkyl).sub.2, --N(C.sub.1-6 alkyl).sub.2, --N(C.sub.1-6 alkyl).sub.3.sup.+X.sup.-, --NH(C.sub.1-6 alkyl).sub.2.sup.+X.sup.-, --NH.sub.2(C.sub.1-6 alkyl) .sup.+X.sup.-, --NH.sub.3.sup.+X.sup.-, --N(OC.sub.1-6 alkyl)(C.sub.1-6 alkyl), --N(OH)(C.sub.1-6 alkyl), --NH(OH), --SH, --SC.sub.1-6 alkyl, --SS(C.sub.1-6 alkyl), --C(.dbd.O)(C.sub.1-6 alkyl), --CO.sub.2H, --CO.sub.2(C.sub.1-6 alkyl), --OC(.dbd.O)(C.sub.1-6 alkyl), --OCO.sub.2(C.sub.1-6 alkyl), --C(.dbd.O)NH.sub.2, --C(.dbd.O)N(C.sub.1-6 alkyl).sub.2, --OC(.dbd.O)NH(C.sub.1-6 alkyl), --NHC(.dbd.O)(C.sub.1-6 alkyl), --N(C.sub.1-6 alkyl)C(.dbd.O)(C.sub.1-6 alkyl), --NHCO.sub.2(C.sub.1-6 alkyl), --NHC(.dbd.O)N(C.sub.1-6 alkyl), --NHC(.dbd.O)NH(C.sub.1-6 alkyl), --NHC(.dbd.O)NH.sub.2, --C(.dbd.NH)O(C.sub.1-6 alkyl), --OC(.dbd.NH)(C.sub.1-6 alkyl), --OC(.dbd.NH)OC.sub.1-6 alkyl, --C(.dbd.NH)N(C.sub.1-6 alkyl).sub.2, --C(.dbd.NH)NH(C.sub.1-6 alkyl), --C(.dbd.NH)NH.sub.2, --OC(.dbd.NH)N(C.sub.1-6 alkyl).sub.2, --OC(NH)NH(C.sub.1-6 alkyl), --OC(NH)NH.sub.2, --NHC(NH)N(C.sub.1-6 alkyl).sub.2, --NHC(.dbd.NH)NH.sub.2, --NHSO.sub.2(C.sub.1-6 alkyl), --SO.sub.2N(C.sub.1-6 alkyl).sub.2, --SO.sub.2NH(C.sub.1-6 alkyl), --SO.sub.2NH.sub.2, --SO.sub.2C.sub.1-6 alkyl, --SO.sub.2OC.sub.1-6 alkyl, --OSO.sub.2C.sub.1-6 alkyl, --SOC.sub.1-6 alkyl, --Si(C.sub.1-6 alkyl).sub.3, --OSi(C.sub.1-6 alkyl).sub.3 --C(.dbd.S)N(C.sub.1-6 alkyl).sub.2, C(.dbd.S)NH(C.sub.1-6 alkyl), C(.dbd.S)NH.sub.2, --C(.dbd.O)S(C.sub.1-6 alkyl), --C(.dbd.S)SC.sub.1-6 alkyl, --SC(.dbd.S)SC.sub.1-6 alkyl, C.sub.1-6 alkyl, C.sub.1-6 perhaloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-10 carbocyclyl, C.sub.6-10 aryl, 3-10 membered heterocyclyl, or 5-10 membered heteroaryl; or two geminal R.sup.gg substituents can be joined to form .dbd.O or .dbd.S; wherein X.sup.- is a counterion. 19. The compound of claim 1 of Formula (I-b): ##STR00216## or a pharmaceutically acceptable salt thereof. 20. The compound of claim 1 of Formula (I-c): ##STR00217## or a pharmaceutically acceptable salt thereof. 21. The compound of claim 1 of Formula (I-d): ##STR00218## or a pharmaceutically acceptable salt thereof. 22. The compound of claim 1 of Formula (I-e): ##STR00219## or a pharmaceutically acceptable salt thereof. 23. The compound of claim 1 of Formula (I-f): ##STR00220## or a pharmaceutically acceptable salt thereof. 24. A compound selected from the group consisting of ##STR00221## and salts thereof.

Details for Patent 9,775,915

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Genentech, Inc.	RITUXAN	rituximab	Injection	103705	11/26/1997		2032-11-26
Idec Pharmaceuticals Corp.	RITUXAN	rituximab	Injection	103737	02/19/2002		2032-11-26
Genentech, Inc.	HERCEPTIN	trastuzumab	For Injection	103792	09/25/1998		2032-11-26
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Genzyme Corporation	CAMPATH	alemtuzumab	Injection	103948	05/07/2001		2032-11-26