InChI=1/C16H14N6O/c1-22(14-7-6-11(8-17)9-18-14)10-15(23)21-16-19-12-4-2-3-5-13(12)20-16/h2-7,9H,10H2,1H3,(H2,19,20,21,23)/f/h19-20H 9B4B44491FFB87DF