| —— | 
                                        (1S,3R,4R,6S)-1,3-dimethyl-3-((E)-4-methyl-5-oxohex-3-en-1-yl)-4-(prop-1-en-2-yl)-7-oxabicyclo[4.1.0]heptan-2-one | 
                                        1382087-73-1 | 
                                        C18H26O3 | 
                                        290.403 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (1S,3R,4R,6S)-3-((E)-5-((tert-butyldimethylsilyl)oxy)-4-methylhexa-3,5-dien-1-yl)-1,3-dimethyl-4-(prop-1-en-2-yl)-7-oxabicyclo[4.1.0]heptan-2-one | 
                                        1382087-74-2 | 
                                        C24H40O3Si | 
                                        404.665 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (4aR,6aR,7aS,8aS,9aR,9bS)-3-((tert-butyldimethylsilyl)oxy)-4,6a,7a,9b-tetramethyl-1,4a,5,6,6a,7a,8a,9,9a,9b-decahydrophenanthro[2,3-b]oxiren-7(2H)-one | 
                                        1382087-75-3 | 
                                        C24H40O3Si | 
                                        404.665 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (1aS,1bR,3aR,4aS,5aS,6aR,6bS,8aR)-8a-((tert-butyldimethylsilyl)oxy)-1a,3a,4a,6b-tetramethyldodecahydro-1H-cyclopropa[7,8]phenanthro[2,3-b]oxiren-4(1aH)-one | 
                                        1382087-76-4 | 
                                        C25H42O3Si | 
                                        418.692 |