Using O=c1nc(Nc2ccc(Cl)cc2)sc2ncccc12, CC(=O)CCl to produce CC(=O)Cn1c(=Nc2ccc(Cl)cc2)sc2ncccc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.