Using CN(C)C=O, CC(C)(C)OC(=O)N1CCOc2ccc(Br)cc2C1 to produce CC(C)(C)OC(=O)N1CCOc2ccc(C#N)cc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.