Using CC(C)(C)NC(=O)[C@@H]1C[C@H](Cl)CN1C(=O)[C@@H](O)[C@@H](N)Cc1ccccc1, CC(C)(C)OC(=O)N[C@@H](CC(N)=O)C(=O)O to produce CC(C)(C)NC(=O)[C@@H]1C[C@H](Cl)CN1C(=O)[C@@H](O)[C@H](Cc1ccccc1)NC(=O)[C@H](CC(N)=O)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.