Using CC[Si](CC)(CC)c1[nH]c2cc(Cl)c(C)cc2c1CCBr, [N-]=[N+]=[N-] to produce CC[Si](CC)(CC)c1[nH]c2cc(Cl)c(C)cc2c1CCN=[N+]=[N-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.