InChI=1/C19H18N4O/c1-14-4-6-16(7-5-14)23-19(24)17-3-2-10-21-18(17)22-13-15-8-11-20-12-9-15/h2-12H,13H2,1H3,(H,21,22)(H,23,24)/f/h22-23H 8B77FDA4878965E3