Using COC(=O)N[C@H](C(=O)O)C(C)C, COC(=O)[C@@H]1C[C@@H](O)CN1 to produce COC(=O)N[C@H](C(=O)N1C[C@H](O)C[C@H]1C(=O)OC)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.