InChI=1S/C30H38O11/c1-16-4-10-22(40-29-26(35)24(33)25(34)27(41-29)28(36)37)30(2,3)20(16)9-5-17(15-31)12-13-38-19-8-6-18-7-11-23(32)39-21(18)14-19/h6-8,11-12,14,22,24-27,29,31,33-35H,4-5,9-10,13,15H2,1-3H3,(H,36,37)/b17-12+