InChI=1/C14H15BrN4O2/c15-8-4-5-11-9(6-8)14(13(7-17-11)19(20)21)18-12-3-1-2-10(12)16/h4-7,10,12H,1-3,16H2,(H,17,18)/p+1/t10-,12-/m0/s1/fC14H16BrN4O2/h16,18H/q+1 CA098E0299431243