8,13,21,23-Tetracosatetraenoic acid,19-[(aminocarbonyl)oxy]-11,17-bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5-hydroxy-2,4,10,12,14,16,18,20-octamethyl-7-oxo-3-[(triethylsilyl)oxy]-,methyl ester,(2R,3S,4S,5S,8Z,10S,11S,12S,13Z,16S,17R,18R,19S,20S,21Z)-