Using CC(=O)c1cccc(O)c1, O=C(O)C(SCc1ccccc1)C(=O)O to produce O=c1oc(-c2cccc(O)c2)cc(O)c1SCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.