Using CCOC(=O)c1cn([C@@H]2C[C@@H]2F)c2cc(F)ccc2c1=O to produce O=C(O)c1cn([C@@H]2C[C@@H]2F)c2cc(F)ccc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.