| —— | 
                                        pivaloyloxymethyl 1,1-dioxide-6-β-[(benzyloxycarbonyl)methylsulfonamido]penicillinate | 
                                        1415712-69-4 | 
                                        C23H30N2O11S2 | 
                                        574.63 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2-[[(2S,5R,6R)-2-(2,2-dimethylpropanoyloxymethoxycarbonyl)-3,3-dimethyl-4,4,7-trioxo-4lambda6-thia-1-azabicyclo[3.2.0]heptan-6-yl]sulfamoyl]acetic acid | 
                                        1415712-70-7 | 
                                        C16H24N2O11S2 | 
                                        484.505 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2,2-dimethylpropanoyloxymethyl (2S,5R,6R)-6-[[2-[2-[2-[2-[5-(dithiolan-3-yl)pentanoylamino]ethoxy]ethoxy]ethylamino]-2-oxoethyl]sulfonylamino]-3,3-dimethyl-4,4,7-trioxo-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate | 
                                        1415712-73-0 | 
                                        C30H50N4O13S4 | 
                                        803.01 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2,2-dimethylpropanoyloxymethyl (2S,5R,6R)-6-[[2-[2-[2-[2-[2-[5-(dithiolan-3-yl)pentanoylamino]ethoxy]ethoxy]ethoxy]ethylamino]-2-oxoethyl]sulfonylamino]-3,3-dimethyl-4,4,7-trioxo-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate | 
                                        1415712-74-1 | 
                                        C32H54N4O14S4 | 
                                        847.063 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        pivaloyloxymethyl 1,1-dioxide-6-β-[(succinimidyloxycarbonyl)methylsulfonamido]penicillinate | 
                                        1415712-72-9 | 
                                        C20H27N3O13S2 | 
                                        581.579 |