InChI=1S/C30H42O8/c1-14(10-16(31)11-15(2)26(37)38)17-12-21(34)30(7)22-18(32)13-19-27(3,4)20(33)8-9-28(19,5)23(22)24(35)25(36)29(17,30)6/h11,14,16-17,19-20,25,31,33,36H,8-10,12-13H2,1-7H3,(H,37,38)/b15-11+