(3S,4aR,8aR)-3-(benzyloxy)-4,4,7,8a-tetramethyl-1,2,3,4,4a,5,6,8a-octahydronaphthalene

(4aS,6S,8aS)-6-(benzyloxy)-2,5,5,8a-tetramethyloctahydronaphthalen-1(2H)-one

Methyl 5-[(4aR,6S,8aS)-6-(benzyloxy)-3,4,4a,5,6,7,8,8a-octahydro-2,5,5,8a-tetramethylnaphthalen-1-yl]-3-oxopentanoate

(3S)-3-t-butyldimethylsilyloxy-2,2,6-trimethylcyclohexanone

(4aR,6S,8aS)-(+)-3,4,4a,5,6,7,8,8a-octahydro-6-benzyloxy-1-hydroxymethyl-2,5,5,8a-tetramethylnaphthalene