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