InChI=1S/C30H38O12/c1-15(2)5-9-20(31)16(3)11-19(39-29-26(35)24(33)25(34)27(41-29)28(36)37)13-30(4)22(42-30)14-38-18-8-6-17-7-10-23(32)40-21(17)12-18/h5-8,10-12,19-20,22,24-27,29,31,33-35H,9,13-14H2,1-4H3,(H,36,37)/b16-11-