Using CCOC(=O)C(CC)CN[C@@H](C)C(=O)O, O=C(Cl)OCc1ccccc1 to produce CCOC(=O)C(CC)CN(C(=O)OCc1ccccc1)[C@@H](C)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.