2,2-Dimethyl-propionic acid (2R,3aS,7aS)-4-[2-[(3S,5R)-3,5-bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-1-[5-methoxymethoxy-5-methyl-hex-(Z)-ylidene]-7a-methyl-octahydro-inden-2-yl ester

(1S,2S,3a'R,4'S,7a'S)-2-(4-(methoxymethoxy)-4-methylpentyl)-7a'-methyloctahydrospiro[cyclopropane-1,1'-inden]-4'-ol

(3aR,4S,7aS)-1-[5-Methoxymethoxy-5-methyl-hex-(Z)-ylidene]-7a-methyl-octahydro-inden-4-ol

tert-butyl(((1S,2R,3a'R,4'S,7a'S)-2-(4-(methoxymethoxy)-4-methylpentyl)-7a'-methyloctahydrospiro[cyclopropane-1,1'-inden]-4'-yl)oxy)dimethylsilane

tert-butyl(((1S,2S,3a'R,4'S,7a'S)-2-(4-(methoxymethoxy)-4-methylpentyl)-7a'-methyloctahydrospiro[cyclopropane-1,1'-inden]-4'-yl)oxy)dimethylsilane