InChI=1/C11H17BrN4O2/c1-3-16(4-2)7-10(17)14-15-11(18)9-5-8(12)6-13-9/h5-6,13H,3-4,7H2,1-2H3,(H,14,17)(H,15,18)/p+1/fC11H18BrN4O2/h14-16H/q+1 4C766200E733DE4F