methyl (1S,4aS,8aR)-2,2-ethylenedioxy-5,5,8a-trimethyl-1,2,3,4,4a,5,8,8a-octahydronapthalene-1-carboxylate

(1Z)-3-methyl-1-(2',2',6'-trimethylcyclohex-1'-enyl)-1-penten-4-yn-3-ol

Methyl (1S,4aS,6S,8aR)-6-(benzyloxy)decahydro-5,5,8a-trimethyl-2-oxonaphthalene-1-carboxylate

methyl (1S,4aS,6S,8aR)-2,2-ethylenedioxy-6-hydroxy-5,5,8a-trimethyldecahydronapthalene-1-carboxylate

methyl (1S,4aS,6S,8aR)-6-benzyloxy-2,2-ethylenedioxy-5,5,8a-trimethyldecahydronapthalene-1-carboxylate