Using Cn1c(-c2ccccc2F)c(-c2ccccc2F)[nH]c1=O, COC(=O)CCCCCCCBr to produce COC(=O)CCCCCCCn1c(-c2ccccc2F)c(-c2ccccc2F)n(C)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.