| —— | (6R,6'R)-3,3'-dimethyl-8,8'-dioxo-7t,7't'-disulfanediyldiamino-bis-((6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid) dimethyl ester | 63536-82-3 | C18H22N4O6S4 | 518.66 | 
                                                                                                                                            
                                        | —— | (6R,6'R)-3,3'-dimethyl-8,8'-dioxo-7t,7't'-tetrasulfanediyldiamino-bis-((6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid) dimethyl ester | 63536-83-4 | C18H22N4O6S6 | 582.792 | 
                                                                                                                                            
                                        | —— | (6R,6'R)-3,3'-dimethyl-8,8'-dioxo-(6rH,6'r'H)-7t,7't'-sulfonyldiamino-bis-(5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid) dimethyl ester | 63536-57-2 | C18H22N4O8S3 | 518.593 | 
                                                                                                                                            
                                        | —— | (6R)-7t-[1,2,3,4,5,6,7,8]heptathiazocan-8-yl-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methyl ester | 63536-77-6 | C9H10N2O3S8 | 450.718 | 
                                                                                                                                            
                                        | —— | Methyl-3-methyl-7ss-(N-triphenylphosphoranyl)amino-3-cephem-4-carboxylat | 61112-56-9 | C27H25N2O3PS | 488.547 | 
                                                                                                                                            
                                        | —— | (6R)-7t-amino-7c-methoxy-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methyl ester | 63536-79-8 | C10H14N2O4S | 258.298 | 
                                                                                                                                            
                                        | —— | methyl <7-(2)H>-3-methyl-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylate | 141734-51-2 | C9H11NO3S | 214.249 | 
                                                                                                                                            
                                        | —— | methyl 3-methyl-7-bromo-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylate | 141734-50-1 | C9H10BrNO3S | 292.153 | 
                                                                                                                                            
                                        | —— | (6R)-7-((6R)-2-methoxycarbonyl-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-7t-ylaminosulfanylimino)-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-2-carboxylic acid methyl ester | 63536-75-4 | C18H20N4O6S3 | 484.578 | 
                                                                                                                                            
                                        | —— | (6R)-7-((6R)-2-methoxycarbonyl-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-7t-ylaminotrisulfanylimino)-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-2-carboxylic acid methyl ester | 63536-84-5 | C18H20N4O6S5 | 548.71 | 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
                                                        
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
                                        | —— | (6R)-7t-[((R)-methoxycarbonyl-phenyl-methylsulfamoyl)-amino]-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methyl ester | 63536-56-1 | C18H21N3O7S2 | 455.513 | 
                                                                                                                                            
                                        | —— | (6R,6'R)-3,3'-dimethyl-8,8'-dioxo-7,7'-sulfanediyldiimino-bis-(5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid) dimethyl ester | 63536-62-9 | C18H18N4O6S3 | 482.562 | 
                                                                                                                                            
                                        | —— | (6R,6'R)-3,3'-dimethyl-8,8'-dioxo-7,7'-disulfanediyldiimino-bis-(5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid) dimethyl ester | 63536-81-2 | C18H18N4O6S4 | 514.628 | 
                                                                                                                                            
                                        | —— | (6R,6'R)-3,3'-dimethyl-8,8'-dioxo-7,7'-trisulfanediyldiimino-bis-(5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid) dimethyl ester | 63536-63-0 | C18H18N4O6S5 | 546.694 | 
                                                                                                                                            
                                        | —— | (6R)-4c-methoxy-7t-methoxysulfonylamino-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methyl ester | 63536-65-2 | C11H16N2O7S2 | 352.389 | 
                                                                                                                                            
                                        | —— | (6R,6'R)-7,7'-diamino-3,3'-dimethyl-8,8'-dioxo-(6rH,7tH,6'r'H,7't'H)-[7,7']bi[5-thia-1-aza-bicyclo[4.2.0]octyl]-2,2'-diene-2,2'-dicarboxylic acid dimethyl ester | 63536-85-6 | C18H22N4O6S2 | 454.528 | 
                                                                                                                                            
                                        | —— | ((6R)-7-methoxy-2-methoxycarbonyl-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-7t-ylamino)-fumaric acid dimethyl ester | 65026-97-3 | C16H20N2O8S | 400.409 | 
                                                                                                                                            
                                        | —— | ((6R)-2-methoxycarbonyl-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-7-ylideneamino)-butenedioic acid dimethyl ester | 64554-55-8 | C15H16N2O7S | 368.367 | 
                                                                                                                                            
                                        | —— | methyl (6R,7R)-7-(2-isopropyl-7-oxo-7H-furo[3,2-g]chromen-3-ylamino)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate | 1338383-67-7 | C23H22N2O6S | 454.503 | 
                                                                                                                                            
                                        | —— | (6R,6'R)-7c-methoxy-3,3'-dimethyl-8,8'-dioxo-7t,7'-(2-thia-1,3-diaza-propan-1-yl-3-ylidene)-bis-(5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid) dimethyl ester | 63536-78-7 | C19H22N4O7S3 | 514.604 |