Using CC(C)(C)OC(=O)N1CCC2(CC1)CC(=O)c1cc(Br)ccc1O2, CN(C)C=O to produce CC(C)(C)OC(=O)N1CCC2(CC1)CC(=O)c1cc(C#N)ccc1O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.