(8Z,13Z)-(3S,4R,5R,10S,11R,12S)-5,11-Bis-(4-methoxy-benzyloxy)-16-((2S,3S,4S,5R,6R)-6-methoxy-4-methoxymethoxy-3,5-dimethyl-tetrahydro-pyran-2-yl)-2,4,10,12-tetramethyl-hexadeca-8,13-dien-3-ol