InChI=1S/C21H24O11/c1-21(2,32-20-15(25)13(23)14(24)17(31-20)19(26)27)18-16(30-18)9-6-8-4-5-12(22)29-10(8)7-11(9)28-3/h4-7,13-18,20,23-25H,1-3H3,(H,26,27)