InChI=1/C16H19BrN4O4/c1-24-11-6-9(5-10-8-20-16(19)21-15(10)18)7-12(14(11)17)25-4-2-3-13(22)23/h6-8H,2-5H2,1H3,(H,22,23)(H4,18,19,20,21)/p-1/fC16H18BrN4O4/h18-19H2/q-1 1B698FC01E613654