Using O=[N+]([O-])c1ccc(Cl)c([N+](=O)[O-])c1, OCCO to produce O=[N+]([O-])c1ccc(OCCO)c([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.