Using CC(CN=[N+]=[N-])(CN=[N+]=[N-])CC(=O)CCO[Si](C)(C)C(C)(C)C to produce CC(CN)(CN)CC(=O)CCO[Si](C)(C)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.