InChI=1S/C17H18BrN5O/c18-15-9-21-17(22-7-3-6-14(20)11-22)23(16(15)24)10-13-5-2-1-4-12(13)8-19/h1-2,4-5,9,14H,3,6-7,10-11,20H2/t14-/m1/s1