InChI=1S/C40H78NO8P/c1-4-6-8-10-12-13-14-15-16-17-18-19-20-21-22-23-24-25-27-29-31-33-40(43)49-38(37-48-50(44,45)47-35-34-41-3)36-46-39(42)32-30-28-26-11-9-7-5-2/h19-20,38,41H,4-18,21-37H2,1-3H3,(H,44,45)/b20-19-