Using COc1cc(OC)nc(S(C)(=O)=O)n1, COC(=O)C(O)c1cccc(OC)c1 to produce COC(=O)C(Oc1nc(OC)cc(OC)n1)c1cccc(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.