Using COC(=O)c1ccc2[nH]ccc2c1, Fc1ccc(CBr)c(F)c1 to produce COC(=O)c1ccc2c(ccn2Cc2ccc(F)cc2F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.