InChI=1/C13H13BrN4OS/c1-7(12(19)8-2-4-9(14)5-3-8)20-13-17-10(15)6-11(16)18-13/h2-7H,1H3,(H4,15,16,17,18)/t7-/m1/s1/f/h15-16H2 1D87371E08573131