(3aR,4R,5S,7aS)-1-Eth-(Z)-ylidene-7a-methyl-octahydro-indene-4,5-diol

(3aS,5aS,8aR,8bR)-6-Eth-(Z)-ylidene-5a-methyl-octahydro-1,3-dioxa-as-indacene-2-thione

Acetic acid (3aR,4R,5S,7aS)-1-eth-(Z)-ylidene-5-hydroxy-7a-methyl-octahydro-inden-4-yl ester

methyl 2-((1R,7aR)-7a-methyl-1,2,3,6,7,7a-hexahydrospiro[indene-5,2'-[1,3]dioxolan]-1-yl)acetate

(1R,5S,7aR)-1-((R)-1,5-Dimethyl-hexyl)-7a-methyl-2,3,5,6,7,7a-hexahydro-1H-inden-5-ol