InChI=1S/C44H57NO4/c1-39(2)34-18-17-33-32(42(34,5)21-20-36(39)49-38(47)30-13-15-31(45)16-14-30)19-22-44(7)35-27-40(3,23-24-41(35,4)25-26-43(33,44)6)28-48-37(46)29-11-9-8-10-12-29/h8-17,19,34-36H,18,20-28,45H2,1-7H3