Using CC(C)(C)N1C[C@H](N)C[C@H]1C(=O)NC[C@@H](O)[C@H](Cc1ccccc1)NC(=O)[C@H](CC(N)=O)NC(=O)OCc1ccccc1, CC(=O)Cl to produce CC(=O)N[C@@H]1C[C@@H](C(=O)NC[C@@H](O)[C@H](Cc2ccccc2)NC(=O)[C@H](CC(N)=O)NC(=O)OCc2ccccc2)N(C(C)(C)C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.