Using COc1ccc2c(c1)Nc1cccc(S(C)(=O)=O)c1S2, ClCCCBr to produce COc1ccc2c(c1)N(CCCCl)c1cccc(S(C)(=O)=O)c1S2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.