InChI=1/C19H22N4O4/c1-12(18(25)22-16-5-3-2-4-15(16)19(26)27)8-13-9-21-23(11-13)17-7-6-14(24)10-20-17/h6-7,9-12,24H,2-5,8H2,1H3,(H,22,25)(H,26,27)/p-1/t12-/m0/s1/fC19H21N4O4/h22H/q-1 AA14CAE1F5900345