InChI=1S/C40H79NO3/c1-3-5-7-9-11-13-15-17-18-19-20-21-22-24-26-28-30-32-34-36-40(44)41-38(37-42)39(43)35-33-31-29-27-25-23-16-14-12-10-8-6-4-2/h17-18,38-39,42-43H,3-16,19-37H2,1-2H3,(H,41,44)/b18-17-/t38-,39?/m0/s1