InChI=1S/C25H28O11/c1-11(2)3-7-14-17(35-25-22(32)20(30)21(31)23(36-25)24(33)34)10-13(18(28)19(14)29)6-4-12-5-8-15(26)16(27)9-12/h3-11,20-23,25-32H,1-2H3,(H,33,34)/b6-4+,7-3+