InChI=1/C21H18N4O/c1-15-9-10-17(12-22-15)21(26)24-18-6-4-5-16(11-18)13-25-14-23-19-7-2-3-8-20(19)25/h2-12,14H,13H2,1H3,(H,24,26)/f/h24H 069631EC661F549D