InChI=1S/C25H28O11/c1-25(2,34)8-7-14-15(26)10-13(11-16(14)27)4-3-12-5-6-18(17(28)9-12)35-24-21(31)19(29)20(30)22(36-24)23(32)33/h3-11,19-22,24,26-31,34H,1-2H3,(H,32,33)/b4-3+,8-7+