Using CC(=O)OC[C@H]1O[C@@H](n2cc(C(=O)c3cc4ccccc4s3)c3ccccc32)[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@@H]1OC(C)=O to produce CC(=O)OC[C@H]1O[C@@H](n2cc(Cc3cc4ccccc4s3)c3ccccc32)[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@@H]1OC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.