Using COc1cc(OC)nc(S(C)(=O)=O)n1, O=Cc1c(O)ccc2ccccc12 to produce COc1cc(OC)nc(Oc2ccc3ccccc3c2C=O)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.