Using CC(C)(SC(F)(F)F)C(=O)C(Oc1ccc(Cl)cc1)n1cncn1 to produce CC(C)(SC(F)(F)F)C(O)C(Oc1ccc(Cl)cc1)n1cncn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.