Using CCOC(=O)c1ncn(-c2nc(C)cs2)c1S, ClCc1ccccc1 to produce CCOC(=O)c1ncn(-c2nc(C)cs2)c1SCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.