(2S,3R)-2-((1S,2R)-2,4-Bis-benzyloxy-1-methoxy-butyl)-5-methoxy-tetrahydro-furan-3-carbaldehyde

(Z)-4-[(2S,3S)-2-((1S,2R)-2,4-Bis-benzyloxy-1-methoxy-butyl)-5-methoxy-tetrahydro-furan-3-yl]-3-methyl-but-3-en-2-one