(2R,3R,4R,5S)-4-(2-hydroxyethyl)-2,3-(isopropylidenedioxy)-5-<(1R)-1,2-(isopropylidenedioxy)ethyl>-4-vinyltetrahydrofuran

(3aS,4R,7aR)-4-Methyl-4-<<(tert-butyldiphenylsilyl)oxy>methyl>hexahydrobenzofuran-2(3H)-one

(2S,3R)-3-Methyl-2-<2-<(tert-butyldiphenylsilyl)oxy>ethyl>-3-vinylcyclohexanone

(3aS,4R,7aR)-4-(Hydroxymethyl)hexahydrobenzofuran-2(3H)-one

(2R,3R,4R,5S)-4-(formylmethyl)-2,3-(isopropylidenedioxy)-5-<(1R)-1,2-(isopropylidenedioxy)ethyl>-4-vinyltetrahydrofuran

(3aS,4S,7aR)-4-Methyl-4-vinylhexahydrobenzofuran-2(3H)-one

(3aS,4S,7aR)-4-Bis(ethylthio)methyl-4-<<(tert-butyldiphenylsilyl)oxy>methyl>hexahydrobenzofuran-2(3H)-one

(3aS,4S,7aR)-4-<(1S)-1,2-Dihydroxyethyl>-4-<<(tert-butyldiphenylsilyl)oxy>methyl>hexahydrobenzofuran-2(3H)-one

(3aS,4S,7aR)-4-Methyl-2-oxo-octahydro-benzofuran-4-carbaldehyde

(3aS,4S,7aR)-4-<(1S)-2-(Benzyloxy)-1-hydroxyethyl>-4-(hydroxymethyl)hexahydrobenzofuran-2(3H)-one

(1R,2S,3S)-2-(2-Hydroxyethyl)-3-methyl-3-vinylcyclohexanol

(2R,3R,4R,5S)-5-<(1S)-2-(benzoyloxy)-1-hydroxyethyl>-2,3-(isopropylidenedioxy)-4-methyl-4-vinyltetrahydrofuran

(3aS,4R,7aR)-4-Methyl-4-vinylhexahydrobenzofuran-2(3H)-one

(1R,2S,3S)-2-[2-(tert-Butyl-diphenyl-silanyloxy)-ethyl]-3-methyl-3-vinyl-cyclohexanol

(1R,2S,3S)-1,3-Dimethyl-2-<2-<(tert-butyldiphenylsilyl)oxy>ethyl>-3-vinylcyclohexanol

Formic acid (S)-2-benzyloxy-1-((3aS,4R,7aR)-4-formyl-2-oxo-octahydro-benzofuran-4-yl)-ethyl ester

(S)-1-((3aR,5S,6R,6aR)-2,2,6-trimethyl-6-vinyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)ethane-1,2-diyl dibenzoate

(S)-1-((3aR,5S,6R,6aR)-2,2,6-Trimethyl-6-vinyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-ethane-1,2-diol

(2R,3R,4R,5S)-2,3-(Isopropylidenedioxy)-5-<(1R)-1,2-(isopropylidenedioxy)ethyl>-4-<(Z)-2-(methoxycarbonyl)ethenyl>-4-(4-oxobutyl)tetrahydrofuran