InChI=1/C14H17BrN4O/c1-7(2)12-11(16)13(19-18-12)14(20)17-10-5-4-9(15)6-8(10)3/h4-7H,16H2,1-3H3,(H,17,20)(H,18,19)/f/h17-18H 2EDD1F5F4F5B98DF