{(1S,3S,4S,5R)-7,7-dimethyl-2,6,8-trioxa-4-(phenylmethoxy)-3-[(phenylmethoxy)methyl]-bicyclo[3.3.0]oct-3-yl}methan-1-ol

{3-[(2,2-dimethyl-1,1-diphenyl-1-silapropoxy)methyl]-(1S,3R,4S,5R)-7,7-dimethyl-2,6,8-trioxa-4-(phenylmethoxy)bicyclo[3.3.0]oct-3-yl}methan-1-ol

(3aR,5S,6S,6aR)-6-Benzyloxy-5-benzyloxymethyl-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxole-5-carbaldehyde

(E)-3-((2S,3R,5R)-3-Benzyloxy-2-benzyloxymethyl-5-methoxy-4-oxo-tetrahydro-furan-2-yl)-acrylic acid methyl ester

(E)-3-((2S,3S,4R,5R)-3-Benzyloxy-2-benzyloxymethyl-4-hydroxy-5-methoxy-tetrahydro-furan-2-yl)-acrylic acid methyl ester