InChI=1/C15H13BrN4S/c16-9-5-6-13(11(17)7-9)21-8-14-19-12-4-2-1-3-10(12)15(18)20-14/h1-7H,8,17H2,(H2,18,19,20)/f/h18H2 7E21A407DFE6B4BF