Using CCOC(=O)C(C(=O)OCC)c1cccn(-c2ccc([N+](=O)[O-])cc2OC)c1=O to produce COc1cc([N+](=O)[O-])ccc1-n1cccc(CC(=O)O)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.