InChI=1/C15H15BrN4O3/c1-20(7-10-3-5-13(16)23-10)8-14(21)17-9-2-4-11-12(6-9)19-15(22)18-11/h2-6H,7-8H2,1H3,(H,17,21)(H2,18,19,22)/p+1/fC15H16BrN4O3/h17-20H/q+1 C66F42204788CAE3