InChI=1S/C27H28O12/c1-11(2)4-9-14-15(28)10-16(37-27-22(33)19(30)21(32)25(39-27)26(34)35)17-18(29)20(31)23(38-24(14)17)12-5-7-13(36-3)8-6-12/h4-8,10,19,21-22,25,27-28,30-33H,9H2,1-3H3,(H,34,35)