InChI=1S/C25H28O11/c1-25(2)18(36-25)10-14-15(27)7-11(8-16(14)28)3-4-12-5-6-13(26)9-17(12)34-24-21(31)19(29)20(30)22(35-24)23(32)33/h3-9,18-22,24,26-31H,10H2,1-2H3,(H,32,33)/b4-3+