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