InChI=1/C16H14N4O2/c1-11-5-6-15(22-11)13-8-14(20-10-19-13)16(21)18-9-12-4-2-3-7-17-12/h2-8,10H,9H2,1H3,(H,18,21)/f/h18H A313ACE108E708E4