InChI=1/C16H16BrN3O3/c1-10-4-5-11(8-14(10)17)18-16(21)13-9-12(20(22)23)6-7-15(13)19(2)3/h4-9H,1-3H3,(H,18,21)/f/h18H 385B12BA4E913177