InChI=1S/C26H28O11/c1-12(2)3-9-15-18(36-26-23(33)21(31)22(32)24(37-26)25(34)35)11-17(29)19(20(15)30)16(28)10-6-13-4-7-14(27)8-5-13/h3-8,10-11,21-24,26-27,29-33H,9H2,1-2H3,(H,34,35)/b10-6+