InChI=1/C16H14N4O2/c1-21-13-5-4-10-2-3-11(16(17)18)8-12(10)15(13)22-14-9-19-6-7-20-14/h2-9H,1H3,(H3,17,18)/p+1/fC16H15N4O2/h17-18H2/q+1 ED33A5D4966F02E3