Using CN(C)C=O, Cc1cc(Br)cnc1N1CCN(C(=O)OC(C)(C)C)CC1 to produce Cc1cc(C#N)cnc1N1CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.