InChI=1/C21H19BrN2O3S/c1-16-8-7-9-17(14-16)24(28(26,27)18-10-3-2-4-11-18)15-21(25)23-20-13-6-5-12-19(20)22/h2-14H,15H2,1H3,(H,23,25)/f/h23H 4E4986F2F2E43FE4