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