Using O=C(OO)c1cccc(Cl)c1, COc1cccc(CCSc2nc3cnccc3[nH]2)c1 to produce COc1cccc(CCS(=O)c2nc3cnccc3[nH]2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.