Using O=C1OC(=O)C(c2ccccc2)=C1Cl, NNc1ccc(F)cc1 to produce O=C1C(Cl)=C(c2ccccc2)C(=O)N1Nc1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.