Using CS(=O)c1cc(=O)c2c(O)cc(O)cc2o1, Oc1ccc(S)cc1 to produce O=c1cc(Sc2ccc(O)cc2)oc2cc(O)cc(O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.