Using CC(C)(C)OC(=O)c1ncc(Br)cc1[N+](=O)[O-], CN(C)C=O to produce CC(C)(C)OC(=O)c1ncc(C#N)cc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.