Using O=C1c2ccccc2C(=O)N1C/C(=C/F)COc1ccc(Cl)cc1Cl, O to produce CC(C)(C)OC(=O)NC/C(=C/F)COc1ccc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.