InChI=1/C20H19N5O4/c26-18(22-7-13-3-4-16-17(6-13)28-12-27-16)11-25-9-15(10-25)20-23-19(24-29-20)14-2-1-5-21-8-14/h1-6,8,15H,7,9-12H2,(H,22,26)/p+1/fC20H20N5O4/h22,25H/q+1 DF5CE1418BDE5B78