Using CCOC(=O)c1ncn2c1[C@@H]1CCN1C(=O)c1c-2ccc(F)c1F to produce O=C(O)c1ncn2c1[C@@H]1CCN1C(=O)c1c-2ccc(F)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.