6-甲基-8-[(27Z)-22,25,26-三羟基-21,40-二甲基-3-氧代-2,11,15,35,39-五氧杂五环[32.2.2.112,16.120,24.010,14]四十碳-4,6,8,17,27,31,37-庚烯-36-基]-7-壬烯酸