2-{(E)-4-[(4S,5R)-5-((E)-(S)-4-Hydroxy-pent-1-enyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-but-1-enyl}-4,6-bis-methoxymethoxy-benzoic acid

((S,4E)-5-((4R,5S)-5-((E)-4-(2-bromo-3,5-bis(methoxymethoxy)phenyl)but-3-enyl)-2,2-dimethyl-1,3-dioxolan-4-yl)pent-4-en-2-yloxy)(tert-butyl)dimethylsilane