InChI=1S/C25H28O11/c1-11(2)3-8-15-17(28)9-13(5-4-12-6-7-14(26)10-16(12)27)18(29)22(15)35-25-21(32)19(30)20(31)23(36-25)24(33)34/h3-7,9-10,19-21,23,25-32H,8H2,1-2H3,(H,33,34)/b5-4+