Using CC(=O)Nc1cc([N+](=O)[O-])ccc1OCCCN1C(=O)c2ccccc2C1=O to produce CC(=O)Nc1cc([N+](=O)[O-])ccc1OCCCN, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.