Using C[C@H](CO)NS(=O)(=O)c1ccc(Br)cc1, C[Si](C)(C)C=[N+]=[N-] to produce COC[C@@H](C)NS(=O)(=O)c1ccc(Br)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.