Using O=C(O)c1cc([N+](=O)[O-])ccc1-c1ccc([N+](=O)[O-])cc1C(=O)O to produce O=[N+]([O-])c1ccc(-c2ccc([N+](=O)[O-])cc2CO)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.