(2R,2(3S),3R,6R,8R,8(1R),9S)-2-(4-benzyloxy-3-methyl-1-butenyl)-8-(3-methoxycarbonyl-1-methyl-2-propenyl)-3,9-dimethyl-1,7-dioxaspiro[5.5]undecane

(2R,2(3S),3R,6R,8R,8(1R),9S)-2-(4-benzyloxy-3-methyl-1-butenyl)-8-(2-hydroxy-1-methylethyl)-8-formyl-3,9-dimethyl-1,7-dioxaspiro[5.5]undecane

(2R,2(1R),3S,6R,8R,9R)-2-(2-acetoxy-1-methylethyl)-8-formyl-3,9-dimethyl-1,7-dioxaspiro[5.5]undecane

(S)-2-[(2R,3S,6R,8R,9R)-8-((E)-(S)-4-Benzyloxy-3-methyl-but-1-enyl)-3,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-propionaldehyde

(2R,3R,6R,8R,8(1R),9S)-2-hydroxymethyl-8-(2-hydroxy-1-methylethyl)-3,9-dimethyl-1,7-dioxaspiro[5.5]undecane