Using COc1cccc(C(=O)CC(=O)c2ccccc2O)c1[N+](=O)[O-] to produce COc1cccc(-c2cc(=O)c3ccccc3o2)c1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.