| —— | 
                                        rel-(2aR,5aR,6S)-1-(tert-butyldimethylsilyl)-6-ethoxy-2a,3,4,5,5a,6-hexahydro-6a-<6-(trimethylsilyl)-4-hexynyl>-2H-cyclopentapyrrol-2-one | 
                                        117416-21-4 | 
                                        C24H45NO2Si2 | 
                                        435.798 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        rel-(2aR,5aR,6S)-1-(tert-butyldimethylsilyl)-6-ethoxy-2a,3,4,5,5a,6-hexahydro-6a-<5-(trimethylsilyl)-3-pentynyl>-2H-cyclopentapyrrol-2-one | 
                                        117416-20-3 | 
                                        C23H43NO2Si2 | 
                                        421.771 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        rel-(2aR,5aR,6S)-1-(tert-butyldimethylsilyl)-6-ethoxy-2a,3,4,5,5a,6-hexahydro-2a-<4-(trimethylsilyl)-2-butynyl>-2H-cyclopentapyrrol-2-one | 
                                        117416-19-0 | 
                                        C22H41NO2Si2 | 
                                        407.744 |