Using C[C@@H](N)C(O)(c1ccccc1)c1ccccc1, O=C(O)C[C@H]1COc2cc(O)ccc21 to produce COC(=O)C[C@H]1COc2cc(O)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.