Using CC(C)[Si](C(C)C)(C(C)C)n1ccc2c(Cl)c(N=[N+]=[N-])cnc21 to produce CC(C)[Si](C(C)C)(C(C)C)n1ccc2c(Cl)c(N)cnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.