InChI=1/C11H14BrN3O3/c1-11(2,13-3)10(16)14-8-5-4-7(12)6-9(8)15(17)18/h4-6,13H,1-3H3,(H,14,16)/p+1/fC11H15BrN3O3/h13-14H/q+1 22E7E14AAF6C9DD9