| —— | (3S,5R,6R)-3-diazoacetyl-2,2-dimethyl-6-phenylacetamidopenam 1,1-dioxide | 118673-36-2 | C17H18N4O5S | 390.42 | 
                                                                                                                                            
                                        | —— | [(5R)-3,3-dimethyl-7-oxo-6t-(2-phenyl-acetylamino)-(5rH)-4-thia-1-aza-bicyclo[3.2.0]hept-2c-yl]-acetic acid | 18521-33-0 | C17H20N2O4S | 348.423 | 
                                                                                                                                            
                                        | —— | N-((1S)-8,8-dimethyl-3,9-dioxo-(1rC9,5tH,6cC9)-7-thia-2-aza-tricyclo[4.2.1.02,5]non-4t-yl)-2-phenyl-acetamide | 63822-47-9 | C17H18N2O3S | 330.408 | 
                                                                                                                                            
                                        | —— | N-((1S)-9ξ-hydroxy-8,8-dimethyl-3-oxo-(1rC9,5tH,6cC9)-7-thia-2-aza-tricyclo[4.2.1.02,5]non-4t-yl)-2-phenyl-acetamide | 63822-58-2 | C17H20N2O3S | 332.423 | 
                                                                                                                                            
                                        | —— | (7R,8S)-2-isopropylidene-8-phenylacetamido-5-oxa-6-thia-1-azabicyclo<5.2.0>nonane-3,9-dione 6-oxide | 118673-37-3 | C17H18N2O5S | 362.406 | 
                                                                                                                                            
                                        | —— | (S)-((1R)-3,3-dimethyl-7-oxo-2-thia-5-aza-bicyclo[2.2.1]hept-6exo-yl)-(2-phenyl-acetylamino)-acetic acid methyl ester | 63822-51-5 | C18H22N2O4S | 362.45 | 
                                                                                                                                            
                                        | —— | (S)-((1R)-3,3-dimethyl-7-oxo-2-thia-5-aza-bicyclo[2.2.1]hept-6exo-yl)-(2-phenyl-acetylamino)-acetic acid | 63822-57-1 | C17H20N2O4S | 348.423 |