Using CN(C(=O)c1ccc([N+](=O)[O-])cc1)c1ccccc1OCCCN1C(=O)c2ccccc2C1=O to produce CN(C(=O)c1ccc([N+](=O)[O-])cc1)c1ccccc1OCCCN, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.