InChI=1/C16H15BrN4O4/c1-9-6-11(17)3-5-12(9)20-15(22)8-19-13-4-2-10(16(18)23)7-14(13)21(24)25/h2-7,19H,8H2,1H3,(H2,18,23)(H,20,22)/f/h20H,18H2 DC84F8D63FACDDE1