InChI=1/C21H18N6O/c28-21(16-11-12-16)24-19-17-20(23-18(22-19)15-9-5-2-6-10-15)27(26-25-17)13-14-7-3-1-4-8-14/h1-10,16H,11-13H2,(H,22,23,24,28)/f/h24H DE7D08DA2E914DE7