InChI=1/C19H17ClN2O2/c20-14-5-1-3-12(9-14)10-17(23)22-8-7-13-4-2-6-15-18(13)16(22)11-21-19(15)24/h1-6,9,16H,7-8,10-11H2,(H,21,24)/t16-/m0/s1/f/h21H BB13965AC4916EE9