3-((3aR,4S,6S,6aS)-6-benzyloxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-2-(diethoxy-phosphoryl)-[3,3-2H2]propionic acid methylester

(4S,5S)-5-Benzyloxy-4-hydroxy-4,5-dihydro-furan-2-carboxylic acid methyl ester