Using Nc1ccc(CC(=O)O)cc1, O=C(Cl)OCC1c2ccccc2-c2ccccc21 to produce Nc1ccc(C(C(=O)O)C(=O)OCC2c3ccccc3-c3ccccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.