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