(1S,2S,3S,4aS,8aR)-1,2,3,4,4a,5,6,7,8,8a-decahydro-3-hydroxy-2,5,5,8a-tetramethyl-1-naphthaleneethanol

methyl 8β,12-epoxy-12-oxo-13,14,15,16-tetranorlabdan-19-oate

methyl ester of cis-communic acid

(1S,4aR,5S,8aR)-methyl 1,4a-dimethyl-6-methylene-5-((E)-3-methylpent-2-en-1-yl)decahydronaphthalene-1-carboxylate

(1S,4aR,5S,8aR)-methyl 1,4a-dimethyl-6-methylene-5-(2-oxoethyl)decahydronaphthalene-1-carboxylate