InChI=1S/C22H26N2O9/c1-20(31)8-5-4-6-10(25)12(8)15(26)13-9(20)7-11-21(32,16(13)27)17(28)14(19(23)30)18(29)22(11,33)24(2)3/h4-6,9,11,14,18,25,27,29,31-33H,7H2,1-3H3,(H2,23,30)/t9?,11?,14?,18?,20-,21+,22?/m1/s1