Using [N-]=[N+]=[N-], CCOC(=O)/C(=N\OCCBr)c1csc(N)n1 to produce CCOC(=O)/C(=N\OCCN=[N+]=[N-])c1csc(N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.