InChI=1/C18H21BrN4O3S2/c1-14-2-5-16(27-14)12-20-21-18(24)13-22-8-10-23(11-9-22)28(25,26)17-6-3-15(19)4-7-17/h2-7,12H,8-11,13H2,1H3,(H,21,24)/b20-12+/f/h21H FA705EBF31AF3773