(3S,4R,3'R,4'S)-3-(3'-hydroxy-4'-methylhexanoyl)-3-methoxymethyloxy-4-methyl-4-vinyl-γ-butyrolactone

(3R,4R,4'S)-3-(3'-oxo-4'-methylhexenoyl)-3-methoxymethyloxy-4-methyl-4-vinyl-γ-butyrolactone

(3S,4R,4'S)-3-(3'-oxo-4'-methylhexenoyl)-3-methoxymethyloxy-4-methyl-4-vinyl-γ-butyrolactone

(S)-3-[1-Hydroxy-2-(2-phenyl-[1,3]dioxolan-2-yl)-ethyl]-3-methoxymethoxy-4-methyl-4-vinyl-dihydro-furan-2-one

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