InChI=1/C16H17BrN4O2/c1-11-10-12(5-6-13(11)17)21-16(23)15(22)20-9-8-19-14-4-2-3-7-18-14/h2-7,10H,8-9H2,1H3,(H,18,19)(H,20,22)(H,21,23)/p+1/fC16H18BrN4O2/h18-21H/q+1 D8F0E22689F314B0