Using CCn1c2ccccc2c2cc(CN3CCCC(C#N)C3)ccc21, C[Si](C)(C)N=[N+]=[N-] to produce CCn1c2ccccc2c2cc(CN3CCCC(c4nnn[nH]4)C3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.