(1R,4aR,5R,8aR)-methyl-6-formyl-1,4a-dimethyl-5-(4-methyl-3-oxopentyl)-1,2,3,4,4a,5,8,8a-octahydronaphthalene-1-carboxylate

(1R,4aS,8aR)-6-[1,3]Dioxan-2-yl-5-formyl-1,4a-dimethyl-1,2,3,4,4a,5,8,8a-octahydro-naphthalene-1-carboxylic acid methyl ester

4α-methoxycarbonyl congener

(4bS,8aS)-2-isopropyl-4b,8,8-trimethyl-1,2,3,4,4a,4b,5,6,7,8,8a,9-dodecahydrophenanthrene-1,2-diol