InChI=1/C11H11BrN4O2/c1-5-4-7(16-18-5)13-11(17)10-8(12)9(14-15-10)6-2-3-6/h4,6H,2-3H2,1H3,(H,14,15)(H,13,16,17)/f/h13,15H D2A85F01661CB3E9