InChI=1S/C27H30O12/c1-33-17-5-12(6-18(34-2)25(17)39-27-24(31)23(30)22(29)19(8-28)38-27)20-14-7-16-15(36-10-37-16)4-11(14)3-13-9-35-26(32)21(13)20/h4-7,13,19-24,27-31H,3,8-10H2,1-2H3