Using O=C(Oc1ccccc1)c1cc([N+](=O)[O-])c2ccccc2c1O, NCCC(=O)O to produce O=C(O)CCNC(=O)c1cc([N+](=O)[O-])c2ccccc2c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.