[(2E,9Z)-(1S,4S,7R)-10-[(2R,5S,6R)-6-(3-benzyloxypropyl)-2-methoxy-5-methyl-tetrahydro-pyran-2-yl]-7-(4-methoxybenzyloxy)-1,2,4-trimethyl-deca-2,9-dienyloxy](tert-butyl)(dimethyl)silane

3-(tert-butyl-dimethyl-silanyloxy)-N-(3-{8-[6-(tert-butyl-dimethyl-silanyloxy)-3,5-dimethyl-hept-4-enyl]-3-methyl-1,7-dioxa-spiro[5.5]undec-2-yl}-propyl)-2-methyl-4-{2-[3-methyl-6-(2-oxopent-3-enyl)tetrahydro-pyran-2-yl]-acetylamino}-butyramide