ethyl 5-((S)-1-((1R,3aR,4S,7aR)-4-hydroxy-7a-methyloctahydro-1H-inden-1-yl)ethyl)furan-2-carboxylate

ethyl 5-((S)-1-((1R,3aR,7aR)-7a-methyl-4-oxooctahydro-1H-inden-1-yl)ethyl)furan-2-carboxylate

ethyl 5-((S)-1-((1R,3aR,7aR,E)-4-(bromomethylene)-7a-methyloctahydro-1H-inden-1-yl)ethyl)furan-2-carboxylate

tert-butyldimethyl(((1R,3aR,4S,7aR)-7a-methyl-1-((1S)-1-(oxiran-2-yl)ethyl)octahydro-1H-inden-4-yl)oxy)silane

(1R,3aR,4S,7aR)-1-((S)-1-(5-(2-hydroxy-2-methylpropyl)furan-2-yl)ethyl)-7a-methyloctahydro-1H-inden-4-ol