Using O=C1COC(=O)N1, Fc1ccc(-c2ccc(CCl)c(Cl)c2)cc1 to produce O=C1COC(=O)N1Cc1ccc(-c2ccc(F)cc2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.