Using Brc1ccc(-c2cccs2)cc1, O=[N+]([O-])c1cccc(SCl)c1 to produce O=[N+]([O-])c1cccc(Sc2ccc(-c3ccc(Br)cc3)s2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.