(2R,3S,4S,5S,7S,10S,12S,13Z)-11-(tert-butyldimethylsilanyloxy)-3,5-[(R)-4-methoxybenzylidenedioxy]-7-methoxymethoxy-2,4,10,12-tetramethyl-14-trimethylsilanylpentadeca-13-en-8-yn acid methyl ester

(R)-2-[(2S,4S,5S,6S)-6-[(3Z,8Z)-(2S,5S,6S,7S)-6-(tert-Butyl-dimethyl-silanyloxy)-2-methoxymethoxy-5,7-dimethyl-9-trimethylsilanyl-deca-3,8-dienyl]-2-(4-methoxy-phenyl)-5-methyl-[1,3]dioxan-4-yl]-propionic acid methyl ester