Using CCOC(=O)n1nc(OCCN2CCOCC2)c2cc([N+](=O)[O-])ccc21 to produce O=[N+]([O-])c1ccc2[nH]nc(OCCN3CCOCC3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.