InChI=1S/C22H24N2O9/c1-20(31)8-5-4-6-10(25)11(8)15(26)13-18(29)22(33)9(7-21(13,20)32)14(24(2)3)16(27)12(17(22)28)19(23)30/h4-6,9,14,25,27,29,31-33H,7H2,1-3H3,(H2,23,30)/t9-,14?,20+,21?,22+/m0/s1