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