Using Cn1cc(C2c3ccc(Cl)cc3C=Cc3sc(Cl)nc32)c(=O)[nH]c1=O to produce Cn1cc(C2c3ccc(Cl)cc3C=Cc3scnc32)c(=O)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.