InChI=1/C16H13BrN4O2/c17-11-7-9(3-6-13(11)22)12-5-4-10-14(18-12)20-21-15(10)19-16(23)8-1-2-8/h3-8,22H,1-2H2,(H2,18,19,20,21,23)/f/h19-20H 2A04C1EECAD542B1