Using Nc1nc(Cl)cc(Cl)n1, O=[N+]([O-])c1ccc(O)cc1 to produce Nc1nc(Cl)cc(Oc2ccc([N+](=O)[O-])cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.