Using C[C@@H](NC(=O)C1(C#N)CCN(c2ncnc3[nH]ccc23)CC1)c1ccc(Cl)cc1 to produce C[C@@H](NC(=O)C1(CN)CCN(c2ncnc3[nH]ccc23)CC1)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.