Using COc1ccc(Cl)cc1C1=C(S)C(=O)NC2C=CC(C(F)(F)F)=CC12, BrCC1CO1 to produce COc1ccc(Cl)cc1C1=C(SCC2CO2)C(=O)NC2C=CC(C(F)(F)F)=CC12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.