2-[(1S,2R,4aR,8aR)-1,2,4a,5-tetramethyl-2,3,4,7,8,8a-hexahydronaphthalen-1-yl]acetaldehyde

ethyl 5',8a'-dimethyl-6'-methyleneoctahydro-2'H-spiro[[1,3]dioxolane-2,1'-naphthalene]-5'-carboxylate

2-methoxy-3-(((4aS,5R,6S,8aR)-5,6,8a-trimethyloctahydro-2H-spiro[naphthalene-1,2'-[1,3]dioxolan]-5-yl)methyl)cyclohexa-2,5-diene-1,4-dione

(4aS,5R,8aR)-5,8a-dimethylhexahydro-2H-spiro[naphthalene-1,2'-[1,3]dioxolan]-6(5H)-one

(2,3-dimethoxy-6-(methoxymethoxy)phenyl)((4aS,5R,6S,8aR)-5,6,8a-trimethyloctahydro-2H-spiro[naphthalene-1,2'-[1,3]dioxolan]-5-yl)methanol