Using O=S(=O)(c1ccccc1)N1OC1c1ccccc1, COC(=O)Cc1sc2ccccc2c(=O)c1-c1ccccc1 to produce COC(=O)C(O)c1sc2ccccc2c(=O)c1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.