Using COCc1cc([N+](=O)[O-])ccc1-n1cccc(CC(=O)O)c1=O to produce COCc1cc([N+](=O)[O-])ccc1-n1cccc(CCO)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.