Using O=C([O-])O, O=C(O)c1cc2ccc([N+](=O)[O-])cc2[nH]1 to produce COC(=O)c1cc2ccc([N+](=O)[O-])cc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.