Using Cc1cc(C)c2[nH]ccc2c1Cc1nc2cc(C#N)ccc2[nH]1 to produce Cc1cc(C)c2c(c1Cc1nc3cc(C#N)ccc3[nH]1)CCN2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.