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