Using CC(O)c1cccc(-n2ccc(=O)c(-c3ccnn3-c3ccccc3F)n2)c1 to produce CC(=O)c1cccc(-n2ccc(=O)c(-c3ccnn3-c3ccccc3F)n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.