InChI=1/C17H16N4O4/c22-9-8-18-17-19-14-3-1-2-12(16(14)20-17)10-15(23)11-4-6-13(7-5-11)21(24)25/h1-7,22H,8-10H2,(H2,18,19,20)/p+1/fC17H17N4O4/h18-20H/q+1 6EEC18D1932FC5F2