Claims for Patent: 8,822,450

Summary for Patent: 8,822,450

Title:	1,6-diazabicyclo [3,2,1] octan-7-one derivatives and their use in the treatment of bacterial infections
Abstract:	Compounds of Formula (I), their preparation and use in preventing or treating bacterial infection is disclosed.
Inventor(s):	Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Satish Bhawsar, Sachin Bhagwat, Mohammed Alam Jafri, Amit MISHRA, Laxmikant Pavase, Sunil Gupta, Rajesh Kale, Sanjeev Joshi
Assignee:	Wockhardt Ltd
Application Number:	US14/111,592
Patent Claims:	1. A compound of Formula (I) or a stereoisomer or a pharmaceutically acceptable salt thereof; wherein: R1 is: (a) hydrogen, (b) (CO)n—R3, or (c) COOR4. n is 0, 1 or 2; R2 is: (a) SO3M, (b) SO2NH2, (c) PO3M, (d) CH2COOM, (e) CF2COOM, (f) CHFCOOM, or (g) CF3; M is hydrogen or a cation; R3 is: (a) hydrogen, (b) C1-C6 alkyl optionally substituted with one or more substituents independently selected from halogen, OR5, CN, COOR5, CONR6R7, NR6R7, NR5COR8, NR5CONR6R7, heterocyclyl, heteroaryl, cycloalkyl or aryl, (c) CN, (d) NR6R7, (e) CONR6R7, (f) NHCONR6R7, (g) aryl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR6R7, halogen, CN, CONR6R7, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR6R7, (h) heterocyclyl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR6R7, halogen, CN, CONR6R7, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR6R7, (i) heteroaryl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR6R7, halogen, CN, CONR6R7, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR6R7, (j) cycloalkyl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR6R7, halogen, CN, CONR6R7, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR6R7, (k) cycloalkyl substituted with C1-C6 alkyl wherein C1-C6 alkyl is further substituted with one or more substituents independently selected from OR5, NR6R7, halogen, CN, or CONR6R7, or (i) OR8; R4 is: (a) hydrogen, (b) C1-C6 alkyl optionally substituted with one or more substituents independently selected from halogen, OR5, CN, COOR5, CONR6R7, NR6R7, NR5COR8, heterocyclyl, heteroaryl, cycloalkyl or aryl, (c) aryl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR6R7, halogen, CN, CONR6R7, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR6R7, (d) heterocyclyl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR6R7, halogen, CN, CONR6R7, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR6R7, (e) heteroaryl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR6R7, halogen, CN, CONR6R7, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR6R7, or (f) cycloalkyl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR6R7, halogen, CN, CONR6R7, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR6R7; R5 and R8 are each independently: (a) hydrogen, or (b) C1-C6 alkyl optionally substituted with one or more substituents independently selected from halogen, CN, CONR6R7, NR6R7, heterocyclyl, heteroaryl, cycloalkyl or aryl; R6 and R7 are each independently: (a) hydrogen, (b) C1-C6 alkyl optionally substituted with one or more substituents independently selected from halogen, OR5, CN, COOR5, CONR5R8, NR5R8, NR5COR8, heterocyclyl, heteroaryl, cycloalkyl or aryl, (c) aryl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR5R8, halogen, CN, CONR5R8, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR5R8, (d) heterocyclyl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR5R8, halogen, CN, CONR5R8, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR5R8, (e) heteroaryl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR5R8, halogen, CN, CONR5R8, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR5R8, (f) cycloalkyl optionally substituted with one or more substituents independently selected from C1-C6 alkyl, OR5, NR5R8, halogen, CN, CONR5R8, SO2-alkyl, SO2-aryl, OSO2-alkyl, OSO2-aryl, or NHCONR5R8, or (g) R6 and R7 are joined together to form a four to seven member ring. 2. A compound according claim 1, selected from: trans-sulfuric acid mono-[2-(N′—[(S)-pyrrolidin-2-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′—((R)-piperidin-3-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-hydrazinocarbonyl-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(amino-acetyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(3-amino-propioyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(4-amino-butanoyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-((2S)-2-amino-3-hydroxy-propioyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-[(2S,4S)-4-fluoro-pyrrolidin-2-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-[(2S,4R)-4-methoxy-pyrrolidin-2-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(piperidin-4-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′—((RS)-piperidin-3-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′—((S)-piperidin-3-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′—((RS)-piperidin-2-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′—((S)-piperidin-2-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′—((R)-piperidin-2-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(piperazin-4-yl-acetyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′—((RS)-1-amino-1-phenyl-acetyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(3-amino-2,2-dimethyl-propioyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(1-aminomethyl-cyclopropan-1-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(5-amino-pentanoyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′—[(R)-pyrrolidin-2-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; trans-sulfuric acid mono-[2-(N′-(2-amino-thiazol-4-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; or a stereoisomer or a pharmaceutically acceptable salt thereof. 3. A compound according claim 1, selected from: Sodium salt of trans-sulfuric acid mono-[2-(N′-(cyano-acetyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; Sodium salt of trans-N′-(7-oxo-6-sulfooxy-1,6-diaza-bicyclo[3.2.1]octane-2-carboxylic acid)-hydrazinecarboxylic acid tert-butyl ester; Sodium salt of trans-sulfuric acid mono-[2-(N′-(morpholin-4-yl-acetyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; Sodium salt of trans-sulfuric acid mono-[2-(N′-(6-carboxamido-pyridin-2-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; Sodium salt of trans-sulfuric acid mono-[2-(N′-(morpholin-4-oxo-carbonyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; Sodium salt of trans-sulfuric acid mono-[2-(N′—[(S)-1-carbamoyl-pyrrolidin-2-carbony]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; Sodium salt of trans-sulfuric acid mono-[2-(N′-[(2S,4S)-1-carbamoyl-4-fluoro-pyrrolidin-2-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; Sodium salt of trans-sulfuric acid mono-[2-(N′—[(S)-1-methanesulfonyl-pyrrolidin-2-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; Sodium salt of trans-sulfuric acid mono-[2-(N′-(cyano-dimethyl-acetyl)-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1 ]oct-6-yl]ester; Sodium salt of trans-sulfuric acid mono-[2-(N′—[(S)-5-oxo-pyrrolidin-2-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl]ester; or a stereoisomer thereof. 4. A pharmaceutical composition comprising a compound according to any of the claims 1 to 3. 5. A pharmaceutical composition according to claim 4, further comprising at least one beta-lactamase inhibitor selected from sulbactam, tazobactam, clavulanic acid, or a pharmaceutically acceptable derivative thereof. 6. A pharmaceutical composition according to claim 4 or 5, further comprising at least one antibacterial agent or a pharmaceutically acceptable derivative thereof. 7. A pharmaceutical composition according to claim 6, wherein the antibacterial agent is selected from a group consisting of aminoglycosides, ansamycins, carbacephems, cephalosporins, cephamycins, lincosamides, lipopeptides, macrolides, monobactams, nitrofurans, penicillins, polypeptides, quinolones, sulfonamides, tetracyclines, or oxazolidinone antibacterial agents. 8. A pharmaceutical composition according to claim 6, wherein the antibacterial agent is a beta-lactam antibacterial agent. 9. A pharmaceutical composition according to claim 6, wherein said antibacterial agent is selected from a group consisting of penicillins, penems, carbapenems, cephalosporins, and monobactams. 10. A pharmaceutical composition according to claim 6, wherein the antibacterial agent is a cephalosporin antibiotic selected from a group consisting of cephalothin, cephaloridine, cefaclor, cefadroxil, cefamandole, cefazolin, cephalexin, cephradine, ceftizoxime, cefoxitin, cephacetrile, cefotiam, cefotaxime, cefsulodin, cefoperazone, ceftizoxime, cefmenoxime, cefmetazole, cephaloglycin, cefonicid, cefodizime, cefpirome, ceftazidime, ceifriaxone, cefpiramide, cefbuperazone, cefozopran, cefepime, cefoselis, cefluprenam, cefuzonam, cefpimizole, cefclidin, cefixime, ceftibuten, cefdinir, cefpodoxime axetil, cefpodoxime proxetil, cefteram pivoxil, cefetamet pivoxil, cefcapene pivoxil or cefditoren pivoxil, cefuroxime, cefuroxime axetil, loracarbacef, ceftaroline and latamoxef. 11. A pharmaceutical composition according to claim 6, wherein the antibacterial agent is selected from a group consisting of ceftazidime, cefepime, cefpirome, piperacillin doripenem, meropenem, imipenem, ceftaroline and ceftolozane. 12. A pharmaceutical composition according to claim 6, wherein the antibacterial agent is selected from a group consisting of aminoglycosides, ansamycins, carbacephems, cephalosporins, cephamycins, lincosamides, lipopeptides, macrolides, monobactams, nitrofurans, penicillins, polypeptides, quinolones, sulfonamides, tetracyclines, or oxazolidinone antibacterial agents. 13. A pharmaceutical composition according to claim 5, comprising (a) trans-sulfuric acid mono-[2-(N′—[(R)-piperidin-3-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl] ester or a stereoisomer or a pharmaceutically acceptable salt thereof, and (b) sulbactam or a pharmaceutically acceptable derivative thereof. 14. A pharmaceutical composition according to claim 5, comprising (a) trans-sulfuric acid mono-[2-(N′—[(R)-pyrrolidin-3-carbonyl]-hydrazinocarbonyl)-7-oxo-1,6-diaza-bicyclo[3.2.1]oct-6-yl] ester or a stereoisomer or a pharmaceutically acceptable salt thereof, and (b) sulbactam or a pharmaceutically acceptable derivative thereof.