(E)-3-[(2R,3R)-3-((1R,2S,3S)-4-Benzyloxy-1,3-dimethyl-2-triethylsilanyloxy-butyl)-oxiranyl]-acrylic acid ethyl ester

(2R,3S)-3-((1S,2S,3S,4S,5S)-6-Benzyloxy-1,3,5-trimethyl-2,4-bis-triethylsilanyloxy-hexyl)-oxirane-2-carbaldehyde