(E)-3-((2S,3R,5S,6R)-5-Benzyloxy-2-{(1R,3S)-1-benzyloxy-3-[(2R,3S)-2-(tert-butyl-dimethyl-silanyloxymethyl)-3,6-dihydro-2H-pyran-3-yloxy]-3-phenylselanyl-propyl}-6-benzyloxymethyl-2-methyl-tetrahydro-pyran-3-yloxy)-acrylic acid methyl ester

(E)-3-{(2S,3R,5S,6R)-5-Benzyloxy-6-benzyloxymethyl-2-[(1R,3S)-1-benzyloxy-3-phenylsulfanyl-3-((2R,3S)-2-triisopropylsilanyloxymethyl-3,6-dihydro-2H-pyran-3-yloxy)-propyl]-2-methyl-tetrahydro-pyran-3-yloxy}-acrylic acid methyl ester