InChI=1S/C30H38O12/c1-16(2)4-8-22(32)17(3)12-20(31)13-18(15-40-30-27(36)25(34)26(35)28(42-30)29(37)38)10-11-39-21-7-5-19-6-9-24(33)41-23(19)14-21/h4-7,9-10,12,14,20,22,25-28,30-32,34-36H,8,11,13,15H2,1-3H3,(H,37,38)/b17-12-,18-10-