InChI=1/C17H18BrN3O3/c18-13-4-6-14(7-5-13)19-9-1-2-17(24)21-20-11-12-3-8-15(22)10-16(12)23/h3-8,10-11,19,22-23H,1-2,9H2,(H,21,24)/b20-11+/f/h21H 28BDAB225E8EB766