InChI=1/C17H14N4O/c1-22-12-6-4-5-11(9-12)21-10-14-13-7-2-3-8-15(13)19-17(18)16(14)20-21/h2-10H,1H3,(H2,18,19)/f/h18H2 1D87D4DB60268731