(4aS,5S,8aS)-5-(2,5-dimethoxybenzyl)-5,8a-dimethyl-6-methyleneoctahydronaphthalen-1(2H)-one

(8a'S)-8a'-methyl-3',4',8',8a'-tetrahydro-2'H-spiro[1,3-dioxolane-2,1'-naphthalen]-6'(7'H)-one

avarol dimethyl ether

(1S,2S,4aS)-(-)-trans-1α-[(2,5-dimethoxyphenyl)methyl]-5-(2-methyl-1,3-dioxolan-2-yl)-octahydro-1β,2β,4aβ-trimethyl-5(6H)-naphthalenone