InChI=1/C17H19BrN2O2S/c1-4-20(14-7-5-11(2)9-12(14)3)17(22)16(21)19-10-13-6-8-15(18)23-13/h5-9H,4,10H2,1-3H3,(H,19,21)/f/h19H 20E73BF0393DFAA5