Using CC(=O)SCCN1C(=O)c2ccccc2C1=O, O=C(CBr)c1ccc(F)cc1 to produce O=C(CSCCN1C(=O)c2ccccc2C1=O)c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.