Using COC(=O)C1N=C(c2ccc([N+](=O)[O-])cc2)OC1C to produce COC(=O)c1nc(-c2ccc([N+](=O)[O-])cc2)oc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.