InChI=1/C15H15BrN4O/c1-20(8-10-6-7-13(16)21-10)9-14-18-12-5-3-2-4-11(12)15(17)19-14/h2-7H,8-9H2,1H3,(H2,17,18,19)/p+1/fC15H16BrN4O/h20H,17H2/q+1 3FCE46F0E3AE6BEE