Using CC(C)N(C)[C@@H]1CC[C@H](N2CC[C@H](NC(=O)OCc3ccccc3)C2=O)[C@H](C(C)(C)O)C1 to produce CC(C)N(C)[C@@H]1CC[C@H](N2CC[C@H](N)C2=O)[C@H](C(C)(C)O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.