Using NS(=O)(=O)c1ccc(F)cc1NS(=O)(=O)/C=C/c1ccc(Cl)cc1 to produce NS(=O)(=O)c1ccc(F)cc1NS(=O)(=O)CCc1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.