Using CCOC(=O)C(C(=O)OCC)c1cc(CN2C(=O)c3ccccc3C2=O)ccc1[N+](=O)[O-] to produce COC(=O)Cc1cc(CN)ccc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.