Using CCOC(=O)C1CC1(C(=O)OCC)c1cccc([N+](=O)[O-])c1 to produce O=C(O)C1CC1(C(=O)O)c1cccc([N+](=O)[O-])c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.