InChI=1/C15H12ClN3O2/c16-13-6-1-2-7-14(13)19-15(20)18-11-4-3-5-12(10-11)21-9-8-17/h1-7,10H,9H2,(H2,18,19,20)/f/h18-19H D5747E3D1636ED42