InChI=1/C13H17BrN4O2/c14-8-6-10-11(18-13(20)17-10)7-9(8)16-12(19)4-2-1-3-5-15/h6-7H,1-5,15H2,(H,16,19)(H2,17,18,20)/p+1/fC13H18BrN4O2/h15-18H/q+1 D9BEF4A70992C5B0