Using NCc1nc2ncccc2c(=O)[nH]1, O=C(Cl)OCc1ccccc1Cl to produce O=C(NCc1nc2ncccc2c(=O)[nH]1)OCc1ccccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.