InChI=1S/C22H22N2O9/c1-7-8-5-4-6-9(25)11(8)15(26)12-10(7)16(27)13-14(24(2)3)18(29)22(33,20(23)31)19(30)21(13,32)17(12)28/h4-6,10,13-14,16,25,27-28,32-33H,1H2,2-3H3,(H2,23,31)/t10?,13?,14?,16?,21-,22?/m0/s1