InChI=1/C20H13ClN2O3/c21-15-3-1-2-13(11-15)19(25)17-10-12(8-14-6-7-26-20(14)17)9-16-4-5-18(24)23-22-16/h1-8,10-11H,9H2,(H,23,24)/f/h23H 97B44C78B064D822