Using CN(C)[C@H]1CCN(c2c(-c3ccccc3)cc(C#N)c(N)c2C#CC(C)(C)C)C1 to produce CN(C)[C@H]1CCN(c2c(-c3ccccc3)cc(C#N)c3[nH]c(C(C)(C)C)cc23)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.