US2015072957A1PendingUtilityA1

Tazobactam Arginine Compositions

Assignee: CALIXA THERAPEUTICS INCPriority: Sep 27, 2012Filed: Nov 14, 2014Published: Mar 12, 2015
Est. expirySep 27, 2032(~6.2 yrs left)· nominal 20-yr term from priority
A61K 31/431A61K 31/53A61K 31/675C07D 499/86A61K 31/546A61K 31/496C07D 499/897A61K 31/4353A61K 31/444A61K 31/4188A61K 31/403C07D 499/14A61K 9/19A61K 31/43Y02A50/30
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Claims

Abstract

This disclosure provides compositions containing solid forms of tazobactam arginine, and methods of manufacturing and using these compositions.

Claims

exact text as granted — not AI-modified
1 . A pharmaceutical composition comprising a compound having a beta-lactam chemical sub-structure and crystalline tazobactam arginine polymorph Ia. 
     
     
         2 . The pharmaceutical composition of  claim 1 , prepared by lyophilization. 
     
     
         3 . The pharmaceutical composition of  claim 1 , obtained from an aqueous solution comprising L-arginine and tazobactam acid. 
     
     
         4 . The pharmaceutical composition of  claim 3 , wherein the aqueous solution has a pH of about 5.9 to about 10.5 prior to lyophilization. 
     
     
         5 . The pharmaceutical composition of  claim 1 , wherein the beta-lactam compound is (2S,5R,6R)-6-[(R)-2-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid. 
     
     
         6 . The pharmaceutical composition of  claim 1 , wherein the beta-lactam compound is selected from the group consisting of the compounds in Table 2: 
       
         
           
                 
                 
                 
               
                   TABLE 2 
                 
                     
                 
                   No. 
                   IUPAC Name 
                   CAS No. 
                 
                     
                 
                     
                 
                 
                 
                 
               
                   1 
                   (2S,5R,6R)-6-[(R)-2-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-2- 
                   61477-96-1 
                 
                     
                   phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   2 
                   (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1- 
                   61-33-6 
                 
                     
                   zabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   3 
                   (5R,6S)-6-[(1R)-1-hydroxyethyl]-3-({2-[(iminomethyl)amino]ethyl}thio)- 
                   74431-23-5 
                 
                     
                   7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 
                     
                 
                   4 
                   (5R,6S)-6-((R)-1-hydroxyethyl)-7-oxo-3-((R)-tetrahydrofuran-2-yl)-4-thia- 
                   106560-14-9 
                 
                     
                   1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid faropenem 
                     
                 
                   5 
                   (2S,5R,6R)-6-{[3-(2-chlorophenyl)-5-methyl-oxazole-4-carbonyl]amino}- 
                   61-72-3 
                 
                     
                   3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   6 
                   (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(2-carboxypropan-2- 
                   72558-82-8 
                 
                     
                   yloxyimino)acetamido)-8-oxo-3-(pyridinium-1-ylmethyl)-5-thia-1-aza- 
                     
                 
                     
                   bicyclo[4.2.0] oct-2-ene-2-carboxylate 
                     
                 
                   7 
                   (6R,7R,Z)-3-(acetoxymethyl)-7-(2-(2-aminothiazol-4-yl)-2- 
                   63527-52-6 
                 
                     
                   (methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2- 
                     
                 
                     
                   carboxylic acid 
                     
                 
                   8 
                   (6R,7R)-7-[(2Z)-2-ethoxyimino-2-[5-(phosphonoamino)-1,2,4-thiadiazol- 
                   400827-46-5 
                 
                     
                   3-yl]acetyl]amino]-3-[4-(1-methylpyridin-1-ium-4-yl)-1,3-thiazol-2- 
                     
                 
                     
                   yl]sulfanyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 
                     
                 
                   9 
                   (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)- 
                   88040-23-7 
                 
                     
                   3-((1-methylpyrrolidinium-1-yl)methyl)-8-oxo-5-thia-1-aza- 
                     
                 
                     
                   bicyclo[4.2.0]oct-2-ene-2-carboxylate 
                     
                 
                   10 
                   (6R,7R)-3-{[(aminocarbonyl)oxy]methyl}-7-{[(2Z)-2-(2-furyl)-2- 
                   55268-75-2 
                 
                     
                   (methoxyimino) acetyl]amino}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   11 
                   (6R,7R)-7-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2- 
                   73384-59-5 
                 
                     
                   (methoxyimino)acetyl]amino}-3-{[(2-methyl-5,6-dioxo-1,2,5,6-tetrahydro- 
                     
                 
                     
                   1,2,4-triazin-3-yl)thio]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   12 
                   (2S,5R,6R)-6-{[(2R)-2-amino-2-(4-hydroxyphenyl)-acetyl]amino}-3,3- 
                   26787-78-0 
                 
                     
                   dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   13 
                   3-[5-(dimethylcarbamoyl) pyrrolidin-2-yl] sulfanyl-6-(1-hydroxyethyl)-4- 
                   119478-56-7 
                 
                     
                   methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 
                 
                     
                 
             
                
                
                
                
               
               
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         7 . The pharmaceutical composition of  claim 1 , further comprising a pharmaceutically acceptable carrier or diluent. 
     
     
         8 . The pharmaceutical composition of  claim 1 , formulated for intravenous injection or infusion. 
     
     
         9 . The pharmaceutical composition of  claim 1 , having a molar ratio of about 1:1 between tazobactam acid and arginine. 
     
     
         10 . A pharmaceutical composition obtained from a solution formed by dissolving a compound having a beta-lactam chemical sub-structure and crystalline tazobactam arginine polymorph Ia. 
     
     
         11 . The pharmaceutical composition of  claim 10 , obtained by a process comprising lyophilizing the solution to obtain pharmaceutical composition. 
     
     
         12 . The pharmaceutical composition of  claim 10 , wherein the solution comprises L-arginine and tazobactam acid. 
     
     
         13 . The pharmaceutical composition of  claim 10 , wherein the beta-lactam compound is (2S,5R,6R)-6-[(R)-2-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid. 
     
     
         14 . The pharmaceutical composition of  claim 11 , wherein the solution has a pH of about 5.9 to about 10.5 prior to lyophilization. 
     
     
         15 . The pharmaceutical composition of  claim 10 , wherein the beta-lactam compound is selected from the group consisting of the compounds in Table 2: 
       
         
           
                 
                 
                 
               
                   TABLE 2 
                 
                     
                 
                   No. 
                   IUPAC Name 
                   CAS No. 
                 
                     
                 
                     
                 
                 
                 
                 
               
                   1 
                   (2S,5R,6R)-6-[(R)-2-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-2- 
                   61477-96-1 
                 
                     
                   phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   2 
                   (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1- 
                   61-33-6 
                 
                     
                   zabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   3 
                   (5R,6S)-6-[(1R)-1-hydroxyethyl]-3-({2-[(iminomethyl)amino]ethyl}thio)- 
                   74431-23-5 
                 
                     
                   7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 
                     
                 
                   4 
                   (5R,6S)-6-((R)-1-hydroxyethyl)-7-oxo-3-((R)-tetrahydrofuran-2-yl)-4-thia- 
                   106560-14-9 
                 
                     
                   1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid faropenem 
                     
                 
                   5 
                   (2S,5R,6R)-6-{[3-(2-chlorophenyl)-5-methyl-oxazole-4-carbonyl]amino}- 
                   61-72-3 
                 
                     
                   3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   6 
                   (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(2-carboxypropan-2- 
                   72558-82-8 
                 
                     
                   yloxyimino)acetamido)-8-oxo-3-(pyridinium-1-ylmethyl)-5-thia-1-aza- 
                     
                 
                     
                   bicyclo[4.2.0] oct-2-ene-2-carboxylate 
                     
                 
                   7 
                   (6R,7R,Z)-3-(acetoxymethyl)-7-(2-(2-aminothiazol-4-yl)-2- 
                   63527-52-6 
                 
                     
                   (methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2- 
                     
                 
                     
                   carboxylic acid 
                     
                 
                   8 
                   (6R,7R)-7-[(2Z)-2-ethoxyimino-2-[5-(phosphonoamino)-1,2,4-thiadiazol- 
                   400827-46-5 
                 
                     
                   3-yl]acetyl]amino]-3-[4-(1-methylpyridin-1-ium-4-yl)-1,3-thiazol-2- 
                     
                 
                     
                   yl]sulfanyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 
                     
                 
                   9 
                   (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)- 
                   88040-23-7 
                 
                     
                   3-((1-methylpyrrolidinium-1-yl)methyl)-8-oxo-5-thia-1-aza- 
                     
                 
                     
                   bicyclo[4.2.0]oct-2-ene-2-carboxylate 
                     
                 
                   10 
                   (6R,7R)-3-{[(aminocarbonyl)oxy]methyl}-7-{[(2Z)-2-(2-furyl)-2- 
                   55268-75-2 
                 
                     
                   (methoxyimino) acetyl]amino}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   11 
                   (6R,7R)-7-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2- 
                   73384-59-5 
                 
                     
                   (methoxyimino)acetyl]amino}-3-{[(2-methyl-5,6-dioxo-1,2,5,6-tetrahydro- 
                     
                 
                     
                   1,2,4-triazin-3-yl)thio]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   12 
                   (2S,5R,6R)-6-{[(2R)-2-amino-2-(4-hydroxyphenyl)-acetyl]amino}-3,3- 
                   26787-78-0 
                 
                     
                   dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   13 
                   3-[5-(dimethylcarbamoyl) pyrrolidin-2-yl] sulfanyl-6-(1-hydroxyethyl)-4- 
                   119478-56-7 
                 
                     
                   methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 
                 
                     
                 
             
                
                
                
                
               
               
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         16 . A pharmaceutical composition obtained by combining a compound having a beta-lactam chemical sub-structure selected from compounds in Table 2 and a tazobactam composition obtained from a solution formed by dissolving a crystalline tazobactam arginine polymorph Ia: 
       
         
           
                 
                 
                 
               
                   TABLE 2 
                 
                     
                 
                   No. 
                   IUPAC Name 
                   CAS No. 
                 
                     
                 
                     
                 
                 
                 
                 
               
                   1 
                   (2S,5R,6R)-6-[(R)-2-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-2- 
                   61477-96-1 
                 
                     
                   phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   2 
                   (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1- 
                   61-33-6 
                 
                     
                   zabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   3 
                   (5R,6S)-6-[(1R)-1-hydroxyethyl]-3-({2-[(iminomethyl)amino]ethyl}thio)- 
                   74431-23-5 
                 
                     
                   7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 
                     
                 
                   4 
                   (5R,6S)-6-((R)-1-hydroxyethyl)-7-oxo-3-((R)-tetrahydrofuran-2-yl)-4-thia- 
                   106560-14-9 
                 
                     
                   1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid faropenem 
                     
                 
                   5 
                   (2S,5R,6R)-6-{[3-(2-chlorophenyl)-5-methyl-oxazole-4-carbonyl]amino}- 
                   61-72-3 
                 
                     
                   3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   6 
                   (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(2-carboxypropan-2- 
                   72558-82-8 
                 
                     
                   yloxyimino)acetamido)-8-oxo-3-(pyridinium-1-ylmethyl)-5-thia-1-aza- 
                     
                 
                     
                   bicyclo[4.2.0] oct-2-ene-2-carboxylate 
                     
                 
                   7 
                   (6R,7R,Z)-3-(acetoxymethyl)-7-(2-(2-aminothiazol-4-yl)-2- 
                   63527-52-6 
                 
                     
                   (methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2- 
                     
                 
                     
                   carboxylic acid 
                     
                 
                   8 
                   (6R,7R)-7-[(2Z)-2-ethoxyimino-2-[5-(phosphonoamino)-1,2,4-thiadiazol- 
                   400827-46-5 
                 
                     
                   3-yl]acetyl]amino]-3-[4-(1-methylpyridin-1-ium-4-yl)-1,3-thiazol-2- 
                     
                 
                     
                   yl]sulfanyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 
                     
                 
                   9 
                   (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)- 
                   88040-23-7 
                 
                     
                   3-((1-methylpyrrolidinium-1-yl)methyl)-8-oxo-5-thia-1-aza- 
                     
                 
                     
                   bicyclo[4.2.0]oct-2-ene-2-carboxylate 
                     
                 
                   10 
                   (6R,7R)-3-{[(aminocarbonyl)oxy]methyl}-7-{[(2Z)-2-(2-furyl)-2- 
                   55268-75-2 
                 
                     
                   (methoxyimino) acetyl]amino}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   11 
                   (6R,7R)-7-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2- 
                   73384-59-5 
                 
                     
                   (methoxyimino)acetyl]amino}-3-{[(2-methyl-5,6-dioxo-1,2,5,6-tetrahydro- 
                     
                 
                     
                   1,2,4-triazin-3-yl)thio]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   12 
                   (2S,5R,6R)-6-{[(2R)-2-amino-2-(4-hydroxyphenyl)-acetyl]amino}-3,3- 
                   26787-78-0 
                 
                     
                   dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   13 
                   3-[5-(dimethylcarbamoyl) pyrrolidin-2-yl] sulfanyl-6-(1-hydroxyethyl)-4- 
                   119478-56-7 
                 
                     
                   methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 
                 
                     
                 
             
                
                
                
                
               
               
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         17 . The pharmaceutical composition of  claim 16 , wherein the solution is an aqueous solution, and the tazobactam composition is obtained by a process comprising lyophilizing an aqueous solution comprising the crystalline tazobactam arginine polymorph Ia to obtain a lyophilized tazobactam composition, and combining the tazobactam composition. 
     
     
         18 . The pharmaceutical composition of  claim 16 , wherein the solution comprises L-arginine and tazobactam acid. 
     
     
         19 . The pharmaceutical composition of  claim 16 , wherein the beta-lactam compound is (2S,5R,6R)-6-[(R)-2-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid. 
     
     
         20 . The pharmaceutical composition of  claim 17 , wherein the solution has a pH of about 5.9 to about 10.5 prior to lyophilization. 
     
     
         21 . A pharmaceutical composition comprising a tazobactam composition obtained from a solution formed by dissolving a tazobactam acid in an aqueous solution and lyophilizing the solution to obtain the tazobactam composition. 
     
     
         22 . The pharmaceutical composition of  claim 21 , obtained by a process further comprising the step of combining a compound having a beta-lactam chemical sub-structure selected from compounds in Table 2 with the tazobactam composition: 
       
         
           
                 
                 
                 
               
                   TABLE 2 
                 
                     
                 
                   No. 
                   IUPAC Name 
                   CAS No. 
                 
                     
                 
                     
                 
                 
                 
                 
               
                   1 
                   (2S,5R,6R)-6-[(R)-2-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-2- 
                   61477-96-1 
                 
                     
                   phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   2 
                   (2S,5R,6R)-3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1- 
                   61-33-6 
                 
                     
                   zabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   3 
                   (5R,6S)-6-[(1R)-1-hydroxyethyl]-3-({2-[(iminomethyl)amino]ethyl}thio)- 
                   74431-23-5 
                 
                     
                   7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 
                     
                 
                   4 
                   (5R,6S)-6-((R)-1-hydroxyethyl)-7-oxo-3-((R)-tetrahydrofuran-2-yl)-4-thia- 
                   106560-14-9 
                 
                     
                   1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid faropenem 
                     
                 
                   5 
                   (2S,5R,6R)-6-{[3-(2-chlorophenyl)-5-methyl-oxazole-4-carbonyl]amino}- 
                   61-72-3 
                 
                     
                   3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   6 
                   (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(2-carboxypropan-2- 
                   72558-82-8 
                 
                     
                   yloxyimino)acetamido)-8-oxo-3-(pyridinium-1-ylmethyl)-5-thia-1-aza- 
                     
                 
                     
                   bicyclo[4.2.0] oct-2-ene-2-carboxylate 
                     
                 
                   7 
                   (6R,7R,Z)-3-(acetoxymethyl)-7-(2-(2-aminothiazol-4-yl)-2- 
                   63527-52-6 
                 
                     
                   (methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2- 
                     
                 
                     
                   carboxylic acid 
                     
                 
                   8 
                   (6R,7R)-7-[(2Z)-2-ethoxyimino-2-[5-(phosphonoamino)-1,2,4-thiadiazol- 
                   400827-46-5 
                 
                     
                   3-yl]acetyl]amino]-3-[4-(1-methylpyridin-1-ium-4-yl)-1,3-thiazol-2- 
                     
                 
                     
                   yl]sulfanyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 
                     
                 
                   9 
                   (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)- 
                   88040-23-7 
                 
                     
                   3-((1-methylpyrrolidinium-1-yl)methyl)-8-oxo-5-thia-1-aza- 
                     
                 
                     
                   bicyclo[4.2.0]oct-2-ene-2-carboxylate 
                     
                 
                   10 
                   (6R,7R)-3-{[(aminocarbonyl)oxy]methyl}-7-{[(2Z)-2-(2-furyl)-2- 
                   55268-75-2 
                 
                     
                   (methoxyimino) acetyl]amino}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   11 
                   (6R,7R)-7-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2- 
                   73384-59-5 
                 
                     
                   (methoxyimino)acetyl]amino}-3-{[(2-methyl-5,6-dioxo-1,2,5,6-tetrahydro- 
                     
                 
                     
                   1,2,4-triazin-3-yl)thio]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene- 
                     
                 
                     
                   2-carboxylic acid 
                     
                 
                   12 
                   (2S,5R,6R)-6-{[(2R)-2-amino-2-(4-hydroxyphenyl)-acetyl]amino}-3,3- 
                   26787-78-0 
                 
                     
                   dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 
                     
                 
                   13 
                   3-[5-(dimethylcarbamoyl) pyrrolidin-2-yl] sulfanyl-6-(1-hydroxyethyl)-4- 
                   119478-56-7 
                 
                     
                   methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 
                 
                     
                 
             
                
                
                
                
               
               
                
               
            
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         23 . The pharmaceutical composition of  claim 21 , wherein the solution further comprises L-arginine. 
     
     
         24 . The pharmaceutical composition of  claim 21 , wherein the solution has a pH of about 5.9 to about 10.5 prior to lyophilization. 
     
     
         25 . The pharmaceutical composition of  claim 22 , wherein the beta-lactam compound is (2S,5R,6R)-6-[(R)-2-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid.

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