InChI=1/C16H17BrN4O/c1-11-18-7-9-21(11)10-8-19-16(22)15-14(17)12-5-3-4-6-13(12)20(15)2/h3-7,9H,8,10H2,1-2H3,(H,19,22)/f/h19H 5F740D12FA91E03D