(3S,4R)-3-[3',3'-(ethylenedioxy)-3'-phenylpropanoyl]-3-methoxymethyloxy-4-methyl-4-vinyl-γ-butyrolactone

(S)-3-[(3R,4S)-1-Hydroxy-3-(4-methoxy-benzyloxy)-4-methyl-hexyl]-3-methoxymethoxy-4-methyl-4-vinyl-dihydro-furan-2-one

(3R,4R,3'R,4'S)-3-[3'-(4-methoxybenzyloxy)-4'-methylhexanoyl]-3-methoxymethyloxy-4-methyl-4-vinyl-γ-butyrolactone

(3S,4R,3'R,4'S)-3-[3'-(4-methoxybenzyloxy)-4'-methylhexanoyl]-3-methoxymethyloxy-4-methyl-4-vinyl-γ-butyrolactone