| —— | 
                                        [1R,4S,5S,6S,4(1'S)]-1'-(4-oxo-3-oxa-6-phenylbicyclo[3.1.0]hex-2-yl)propyl-1'-carbamic acid tert-butyl ester | 
                                        331821-38-6 | 
                                        C19H25NO4 | 
                                        331.412 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2-(4-oxo-3-oxa-6-phenylbicyclo[3.1.0]hex-2-yl)aziridine-1-carboxylic acid tert-butyl ester | 
                                        331821-36-4 | 
                                        C18H21NO4 | 
                                        315.369 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (4R)-2,2-dimethyl-4-[[(1S)-1-[(1S,2S,5R,6S)-4-oxo-6-phenyl-3-oxabicyclo[3.1.0]hexan-2-yl]propyl]carbamoyl]-1,3-thiazolidine-3-carboxylate | 
                                        331821-41-1 | 
                                        C25H34N2O5S | 
                                        474.621 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (4R)-4-[[(1S,2S)-1-[tert-butyl(dimethyl)silyl]oxy-1-[(1S,2R,3S)-2-methoxycarbonyl-3-phenylcyclopropyl]butan-2-yl]carbamoyl]-2,2-dimethyl-1,3-thiazolidine-3-carboxylate | 
                                        331821-42-2 | 
                                        C32H52N2O6SSi | 
                                        620.926 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (1R,2S,3S)-2-[(1S,2S)-1-[tert-butyl(dimethyl)silyl]oxy-2-[[(4R)-2,2-dimethyl-3-[(2-methylpropan-2-yl)oxycarbonyl]-1,3-thiazolidine-4-carbonyl]amino]butyl]-3-phenylcyclopropane-1-carboxylic acid | 
                                        331821-44-4 | 
                                        C31H50N2O6SSi | 
                                        606.899 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        tert-butyl (4R)-4-[[(1S,2S)-1-[tert-butyl(dimethyl)silyl]oxy-1-[(1S,2R,3S)-2-[[(2S)-1-methoxy-4-methylsulfanyl-1-oxobutan-2-yl]carbamoyl]-3-phenylcyclopropyl]butan-2-yl]carbamoyl]-2,2-dimethyl-1,3-thiazolidine-3-carboxylate | 
                                        331821-46-6 | 
                                        C37H61N3O7S2Si | 
                                        752.125 |