Using O=C(CO)OCc1ccccc1, CC(=O)OC[C@H]1O[C@@H]2OC(C)=N[C@@H]2[C@@H](OC(C)=O)[C@@H]1OC(C)=O to produce CC(=O)N[C@H]1[C@H](OCC(=O)OCc2ccccc2)O[C@H](COC(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.