Using FCCCCCCCBr, CCNCCCC(O)c1ccc(NS(C)(=O)=O)cc1 to produce CCN(CCCCCCCF)CCCC(O)c1ccc(NS(C)(=O)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.