InChI=1S/C25H28O11/c1-12(11-26)2-6-15-17(28)9-14(4-3-13-5-7-16(27)18(29)8-13)10-19(15)35-25-22(32)20(30)21(31)23(36-25)24(33)34/h2-10,12,20-23,25-32H,11H2,1H3,(H,33,34)/b4-3+,6-2+