(2E,8Z)-(4R,5S,7S,10S,11R,12S,14R)-5,7-Bis-(tert-butyl-dimethyl-silanyloxy)-15-(4-methoxy-benzyloxy)-4,10,12,14-tetramethyl-pentadeca-2,8-diene-1,11-diol

5,7-bis-(tert-butyl-dimethyl-silanyloxy)-11-hydroxy-15-(4-methoxy-benzyloxy)-4,10,12,14-tetramethyl-pentadeca-2,8-dienoic acid ethyl ester

tert-Butyl-{(S)-1-[(R)-2-(4-methoxy-benzyloxy)-1-methyl-ethyl]-but-3-enyloxy}-dimethyl-silane