Using NC1=C(Cl)C(=O)c2ccccc2C1=O, O=C(Cl)c1ccccc1F to produce O=C1c2ccccc2C(=O)c2oc(-c3ccccc3F)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.