(1S,8aR)-3-isopropylidene-1,2,3,5,6,7,8,8a-octahydro-1-(prop-2'-enyl)-5,5,8a-trimethylnaphthalene

(1S,8aR)-1,2,3,5,6,7,8,8a-octahydro-3-oxo-5,5,8a-trimethyl-1-naphthaleneethanol

(2S,3S,4S,4aR,8aS)-4-[2'-(tert-butyldimethylsilyloxy)ethyl]-1,2,3,4,4a,5,6,7,8,8a-decahydro-3,4a,8,8-tetramethyl-2-naphthalenol

(1R,8aR)-2-methylene-1,2,3,5,6,7,8,8a-octahydro-3-oxo-5,5,8a-trimethyl-1-naphthaleneethanol

(4aR,5S,7S)-3,4,4a,5,6,7-hexahydro-7-isopropenyl-5-(prop-2'-enyl)-1,1,4a-trimethylnaphthalene-2(1H)-one