| —— | 
                                        (S)-2-[(7-(1,1-Dimethyl-allyl)-3-{2-ethoxycarbonyl-2-[(Z)-hydroxyimino]-ethyl}-1H-indol-4-yl)-methyl-amino]-3-methyl-butyric acid tert-butyl ester | 
                                        131226-19-2 | 
                                        C28H41N3O5 | 
                                        499.651 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-2-[(7-(1,1-Dimethyl-allyl)-5-{2-ethoxycarbonyl-2-[(Z)-hydroxyimino]-ethyl}-1H-indol-4-yl)-methyl-amino]-3-methyl-butyric acid tert-butyl ester | 
                                        131226-20-5 | 
                                        C28H41N3O5 | 
                                        499.651 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (S)-2-[(7-(1,1-Dimethyl-allyl)-3,5-bis-{2-ethoxycarbonyl-2-[(Z)-hydroxyimino]-ethyl}-1H-indol-4-yl)-methyl-amino]-3-methyl-butyric acid tert-butyl ester | 
                                        131226-22-7 | 
                                        C33H48N4O8 | 
                                        628.766 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        5-[((S)-1-tert-Butoxycarbonyl-2-methyl-propyl)-methyl-amino]-8-(1,1-dimethyl-allyl)-4a-{2-ethoxycarbonyl-2-[(Z)-hydroxyimino]-ethyl}-4,4a,9,9a-tetrahydro-[1,2]oxazino[6,5-b]indole-3-carboxylic acid ethyl ester | 
                                        131226-21-6 | 
                                        C33H48N4O8 | 
                                        628.766 |