tert-Butyl-{2-[(2R,3S,4S,5R,6R)-6-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-4-(4-methoxy-benzyloxy)-3,5-dimethyl-tetrahydro-pyran-2-yl]-ethoxy}-diphenyl-silane

[6-(2-{2-[6-(9-bromo-6-methoxy-3-methyl-1-triisopropylsilanyloxy-nona-2,4,8-trienyl)-2,4-dimethoxy-tetrahydro-pyran-2-ylmethyl]-oxazol-4-yl}-1-methyl-vinyl)-4-(4-methoxy-benzyloxy)-3,5-dimethyl-tetrahydro-pyran-2-yl]-acetaldehyde