Using Cc1ccc(-c2ccccc2)cc1, O=C(Cl)c1ccc(Cl)c(Cl)c1 to produce Cc1ccc(-c2ccc(C(=O)c3ccc(Cl)c(Cl)c3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.