Using C[C@@](O)(C(=O)Nc1ccc(S)c(Cl)c1Cl)C(F)(F)F, CCC1CO1 to produce CCC(O)CSc1ccc(NC(=O)[C@@](C)(O)C(F)(F)F)c(Cl)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.