[(3R)-1-[2-[(2R,4R,5S)-4-[(3R)-3-heptacosa-14,16,18,20,22,24,26-heptaynoyloxyheptacosa-14,16,18,20,22,24,26-heptaynoyl]oxy-6-(hydroxymethyl)-3-[[(3R)-3-pentacosa-12,14,16,18,20,22,24-heptaynoyloxyheptacosa-14,16,18,20,22,24,26-heptaynoyl]amino]-5-phosphonooxyoxan-2-yl]oxyethylamino]-1-oxoheptacosa-14,16,18,20,22,24,26-heptayn-3-yl] nonacosa-16,18,20,22,24,26,28-heptaynoate