Using COC(=O)C(COS(=O)(=O)c1ccc(C)cc1)NC(=O)OC(C)(C)C, Fc1ccc(S)cc1 to produce COC(=O)C(CSc1ccc(F)cc1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.