InChI=1S/C27H28O11/c1-11(2)4-6-14-17(37-27-22(31)20(29)21(30)25(38-27)26(32)33)9-18-19(23(14)34-3)24-15(10-35-18)13-7-5-12(28)8-16(13)36-24/h4-5,7-9,20-22,25,27-31H,6,10H2,1-3H3,(H,32,33)