InChI=1/C16H13N5O2/c1-22-11-5-2-4-10(8-11)12-9-21-16(14(17)18-12)19-15(20-21)13-6-3-7-23-13/h2-9H,1H3,(H2,17,18)/p+1/fC16H14N5O2/h18H,17H2/q+1 2141D8ACA1F9CADB