Using COc1ccc(C(=O)c2sc3ccccc3c2-c2ccccc2)cc1 to produce O=C(c1ccc(O)cc1)c1sc2ccccc2c1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.