Using CCOC(=O)C(=C(c1ccc(F)cc1)c1ccc(F)cc1)C(C(C)C)C(C)C to produce CC(C)C(C(=CO)C(c1ccc(F)cc1)c1ccc(F)cc1)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.