Using NCc1cc(Cl)ccc1CN1CC(F)(F)C1, CC(C)(C)OC(=O)N1CCC[C@H]1C(=O)O to produce CC(C)(C)OC(=O)N1CCC[C@H]1C(=O)NCc1cc(Cl)ccc1CN1CC(F)(F)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.