Using O=c1c(-c2ccc(Cl)cc2)c2c(cn1CO)Sc1ccccc1N2 to produce CC(C)CC(=O)OCn1cc2c(c(-c3ccc(Cl)cc3)c1=O)Nc1ccccc1S2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.