Using CCN(CC)C(=O)C[C@H]1C[C@@H](CC#N)OC(C)(C)O1 to produce CCN(CC)C(=O)C[C@H]1C[C@@H](CCN)OC(C)(C)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.