Using CC=CCBr, CC(=O)Nc1ccc(Nc2c(N)cc(C(=O)O)cc2S(N)(=O)=O)cc1 to produce CC=CCNc1cc(C(=O)O)cc(S(N)(=O)=O)c1Nc1ccc(NC(C)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.