InChI=1/C17H15ClN4O/c1-12-4-2-3-5-16(12)21-17(23)20-14-6-8-15(9-7-14)22-11-13(18)10-19-22/h2-11H,1H3,(H2,20,21,23)/f/h20-21H 2118F749D1253589