9-[(E)-4-[(2S,3S,4R,5S)-4-[9-[(E)-4-[(2S,3R,4R,5S)-3,4-dihydroxy-5-[[(2S,3S)-3-[(2S,3S)-3-hydroxybutan-2-yl]oxiran-2-yl]methyl]oxan-2-yl]-3-methylbut-2-enoyl]oxynonanoyloxy]-3-hydroxy-5-[(2S,3S,4S,5S)-2,3,5-trihydroxy-4-methylhexyl]oxan-2-yl]-3-methylbut-2-enoyl]oxynonanoic acid