Using C=CCBr, O=[N+]([O-])c1ccc(C2CCS(=O)(=O)NC2)c(F)c1 to produce C=CCN1CC(c2ccc([N+](=O)[O-])cc2F)CCS1(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.