InChI=1/C21H18N6O2/c1-28-16-4-2-14(3-5-16)10-15(11-22)19-17(12-23)20(25)26-21(18(19)13-24)27-6-8-29-9-7-27/h2-5,10H,6-9H2,1H3,(H2,25,26)/b15-10+/f/h25H2 5C88EEA09EA58C5B