InChI=1S/C33H32O9/c1-15(2)4-7-21-23(35)9-5-17-13-27(42-32(17)21)18-11-25(37)28(26(38)12-18)22-10-16(3)31(39)29(30(22)33(40)41)20-8-6-19(34)14-24(20)36/h4-6,8-14,22,29-31,34-39H,7H2,1-3H3,(H,40,41)