InChI=1/C18H16BrN3O/c1-12-11-18(14-3-7-16(8-4-14)20-13(2)23)22(21-12)17-9-5-15(19)6-10-17/h3-11H,1-2H3,(H,20,23)/f/h20H 8788512E878A6BCF