InChI=1/C20H17BrN3O4S/c1-13-6-8-17(21)18(10-13)24-29(26,27)16-5-3-4-14(11-16)20(25)23-15-7-9-19(28-2)22-12-15/h3-12H,1-2H3,(H,23,25)/q-1/f/h23H CCD554DB695E1C0F