Using CNC(=O)c1cc2ccccc2c(-c2cccc(I)c2)n1, FCCCBr to produce CN(CCCF)C(=O)c1cc2ccccc2c(-c2cccc(I)c2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.