Using CS(=O)(=O)Cc1ccc(C(=O)Nc2ccc(Cl)c(-c3ccccn3)c2)cc1O, BrCCBr to produce CS(=O)(=O)Cc1ccc(C(=O)Nc2ccc(Cl)c(-c3ccccn3)c2)cc1OCCBr, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.