Using CC(C)(C)[Si](C)(C)OC[C@@H](N=[N+]=[N-])C1CCOCC1 to produce CC(C)(C)[Si](C)(C)OC[C@@H](N)C1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.