(7aS)-5,5-ethylenedioxy-7a-methyl-2,3,5,6,7,7a-hexahydro-1H-inden-1-one

(R)-1-Eth-(Z)-ylidene-7a-methyl-1,2,3,6,7,7a-hexahydro-inden-5-one

(5S,7aR)-1-Eth-(Z)-ylidene-7a-methyl-2,3,5,6,7,7a-hexahydro-1H-inden-5-ol

(R,Z)-1-ethylidene-7a-methyl-1,2,3,6,7,7a-hexahydrospiro[indene-5,2'-[1,3]dioxolane]

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