Using CC(=O)OCc1cc(N(C(=O)OC(C)(C)C)c2ccc(C#N)cc2)ccc1Br to produce CC(=O)OCc1cc(Nc2ccc(C#N)cc2)ccc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.