Using O=C(N[C@@H](Cc1ccc(O)cc1)C(=O)O)OCc1ccccc1, O=C1CCC(=O)N1O to produce O=C(N[C@@H](Cc1ccc(O)cc1)C(=O)ON1C(=O)CCC1=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.