Using COc1cccc(C2(c3ccc(C#N)cc3)CCN(Cc3ccccc3)CC2)c1, C[Si](C)(C)N=[N+]=[N-] to produce COc1cccc(C2(c3ccc(-c4nnn[nH]4)cc3)CCN(Cc3ccccc3)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.