Using C=CCBr, CS(=O)(=O)Nc1cc([N+](=O)[O-])ccc1Br to produce C=CCN(c1cc([N+](=O)[O-])ccc1Br)S(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.