(E,11R,12S,15R,16R,19S,20R)-15,16-di(tert-butyldimethylsilyloxy)-25-(tert-butyldiphenylsilyloxy)-11,20-di(methoxymethoxy)-12,19-di(p-toluenesulfonoxy)-21-heptacosen-26-yne

(S)-3-{(4E,11E)-(8S,13R)-8-Hydroxy-13-methoxymethoxy-13-[(2R,5R,2'R,5'R)-5'-((R)-1-methoxymethoxy-undecyl)-octahydro-[2,2']bifuranyl-5-yl]-trideca-4,11-dien-6-ynyl}-5-methyl-5H-furan-2-one

(S)-3-{(8R,13R)-8-Hydroxy-13-methoxymethoxy-13-[(2R,5R,2'R,5'R)-5'-((R)-1-methoxymethoxy-undecyl)-octahydro-[2,2']bifuranyl-5-yl]-tridecyl}-5-methyl-5H-furan-2-one