Using Nc1ccc(Oc2ccc(C=O)cc2Cl)cc1[N+](=O)[O-], OCCO to produce Nc1ccc(Oc2ccc(C3OCCO3)cc2Cl)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.