Using NCC(=O)N[C@@H]1CCN(Cc2ccc(Cl)cc2)C1, O=C(Cl)c1ccc(F)c(F)c1 to produce O=C(CNC(=O)c1ccc(F)c(F)c1)N[C@@H]1CCN(Cc2ccc(Cl)cc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.