Using COC(=O)C(C(=O)OC)C(Cc1cc(Cl)ccc1N)c1ccc(OC)cc1 to produce COC(=O)C1C(=O)Nc2ccc(Cl)cc2CC1c1ccc(OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.