Using Sc1ccc(Cl)cc1, CC(C)(C)OC(=O)n1ncc(CO)cc1=O to produce CC(C)(C)OC(=O)n1ncc(CSc2ccc(Cl)cc2)cc1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.