4-[8-(4-methoxybenzyloxy)-1,7-di(tert-butyldiphenylsilyloxy)-(1S,7R,8R)-2,4-pentadecadiynyl]-2,2-dimethyl-(4R)-1,3-dioxolane

10-(4-methoxybenzyloxy)-3,9-di(tert-butyldiphenylsilyloxy)-(2R,3S,9R,10R)-4,6-heptadecadiyne-1,2-diol