1-[(Z)-(1S,2R,3R,4S,8S,9R,10R)-3,9-Bis-(tert-butyl-dimethyl-silanyloxy)-11-iodo-2,4,8,10-tetramethyl-1-((Z)-(S)-1-methyl-penta-2,4-dienyl)-undec-6-enyloxymethyl]-4-methoxy-benzene