InChI=1S/C30H42O7/c1-16(25(35)36)9-8-11-29(6,37)20-14-22(34)30(7)24-17(31)13-19-26(2,3)21(33)10-12-27(19,4)23(24)18(32)15-28(20,30)5/h9,19-21,33,37H,8,10-15H2,1-7H3,(H,35,36)/b16-9+