| —— | (2S,3R,5R)-3-Methyl-4,4,7-trioxo-4λ6-thia-1-aza-bicyclo[3.2.0]heptane-2,3-dicarboxylic acid 2-benzhydryl ester | 182750-66-9 | C21H19NO7S | 429.45 | 
                                                                                                                                            
                                        | —— | benzhydryl (2S,3R,5R)-3-carbonochloridoyl-3-methyl-4,4,7-trioxo-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate | 1026477-53-1 | C21H18ClNO6S | 447.896 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(methoxyimino)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188249-93-6 | C22H22N2O6S | 442.492 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(ethoxyimino)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-00-2 | C23H24N2O6S | 456.519 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(allyloxyimino)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188249-97-0 | C24H24N2O6S | 468.53 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-[(2-hydroxyethoxy)imino]methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-02-4 | C23H24N2O7S | 472.519 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(t-butoxyimino)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-10-4 | C25H28N2O6S | 484.573 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(cyclopropylmethoxyimino)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-17-1 | C25H26N2O6S | 482.557 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(carbamoylmethoxyimino)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 757167-94-5 | C23H23N3O7S | 485.518 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-methyl-4,4,7-trioxo-3-(thiosemicarbazono)methyl-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-38-6 | C22H22N4O5S2 | 486.572 | 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
                                                        
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(acetylhydrazono)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-29-5 | C23H23N3O6S | 469.518 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-methyl-4,4,7-trioxo-3-(semicarbazono)methyl-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-35-3 | C22H22N4O6S | 470.506 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(t-butoxycarbonylmethoxyimino)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-21-7 | C27H30N2O8S | 542.61 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-methyl-3-[2-(1H-1,2,3-triazol-1-yl)ethoxyimino]methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-24-0 | C25H25N5O6S | 523.569 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-(benzyloxycarbonylhydrazono)methyl-3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-40-0 | C29H27N3O7S | 561.615 | 
                                                                                                                                            
                                        | —— | diphenylmethyl (2S,3R,5R)-3-methyl-4,4,7-trioxo-3-[(pyridin-2-yl)methoxyimino]methyl-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate | 188250-26-2 | C27H25N3O6S | 519.578 |