tert-Butyl-{(3aR,4S,7aS)-1-[5-methoxymethoxy-5-methyl-hex-(E)-ylidene]-7a-methyl-octahydro-inden-4-yloxy}-dimethyl-silane

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

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