Using COC(=O)Oc1cc(N2C(=O)C3=CCCCN3C2=O)c(F)cc1Cl to produce O=C1C2=CCCCN2C(=O)N1c1cc(O)c(Cl)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.