InChI=1S/C33H50O9/c1-17(7-6-12-31(2,3)40)20-8-9-21-19-16-24(41-30-27(37)25(35)26(36)28(42-30)29(38)39)23-15-18(34)10-13-33(23,5)22(19)11-14-32(20,21)4/h9,17,20,23-28,30,35-37,40H,6-8,10-16H2,1-5H3,(H,38,39)