Using COc1cc(OC)nc(S(C)(=O)=O)n1, CCOC(=O)c1c(O)csc1CSC to produce CCOC(=O)c1c(Oc2nc(OC)cc(OC)n2)csc1CSC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.