Using O=Cc1ccc(Cl)cc1, CC(=O)OCN1C(=O)C2(CCNCC2)c2ccccc21 to produce CC(=O)OCN1C(=O)C2(CCNCC2)c2cc(Cc3ccc(Cl)cc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.