Using COc1ccccc1N1CCN(C(=O)[C@H](N)Cc2ccccn2)CC1 to produce COc1ccccc1N1CCN(C[C@H](N)Cc2ccccn2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.