Using CC(C)(C)N1C[C@@H](C(=O)O)[C@H](c2ccc(F)cc2F)C1, CC(=O)N[C@@H](C)c1cc(Cl)ccc1C1CCNCC1 to produce CC(=O)N[C@@H](C)c1cc(Cl)ccc1C1CCN(C(=O)[C@@H]2CN(C(C)(C)C)C[C@H]2c2ccc(F)cc2F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.