Using FCCBr, CCOC(=O)c1c[nH]c2cc(/C=C/c3nc(C(C)C)cs3)ccc2c1=O to produce CCOC(=O)c1cn(CCF)c2cc(/C=C/c3nc(C(C)C)cs3)ccc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.