Using CC(=O)O, C[C@@]1(O)[C@H](O)[C@@H](CO)O[C@H]1n1ccc(=O)[nH]c1=O to produce CC(=O)OC[C@H]1O[C@@H](n2ccc(=O)[nH]c2=O)[C@](C)(OC(C)=O)[C@@H]1OC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.