Using CSc1onc(-c2ccccc2)c1-c1ccc(S(N)(=O)=O)cc1, O=C(OO)c1cccc(Cl)c1 to produce CS(=O)c1onc(-c2ccccc2)c1-c1ccc(S(N)(=O)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.