InChI=1S/C22H24N2O9/c1-20(31)8-5-4-6-11(25)12(8)15(26)13-9(20)7-10-14(24(2)3)17(28)22(33,19(23)30)18(29)21(10,32)16(13)27/h4-6,9-10,14,25,27,31-33H,7H2,1-3H3,(H2,23,30)/t9?,10?,14?,20-,21+,22?/m1/s1