Using O=Cc1ccc(-c2ccc(Cc3cc([C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)ccc3Cl)s2)cc1 to produce OCc1ccc(-c2ccc(Cc3cc([C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)ccc3Cl)s2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.