6-[9-bromo-1-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-3-methyl-nona-2,4,8-trienyl]-2-(4-{2-[6-(2,2-dimethoxy-ethyl)-4-(4-methoxy-benzyloxy)-3,5-dimethyl-tetrahydro-pyran-2-yl]-propenyl}-oxazol-2-ylmethyl)-4-methoxy-tetrahydro-pyran-2-ol