InChI=1/C22H22N2O7/c25-19(24-17-9-5-4-8-15(17)12-18(24)21(28)29)11-10-16(20(26)27)23-22(30)31-13-14-6-2-1-3-7-14/h1-9,16,18H,10-13H2,(H,23,30)(H,26,27)(H,28,29)/p-2/t16-,18-/m0/s1/fC22H20N2O7/h23H/q-2 BB0F7DA6F4787727