Using Cc1cc(NN)ncc1Br, CCOC(=O)C(=CN(C)C)c1ccc(C#N)cc1 to produce Cc1cc(-n2ncc(-c3ccc(C#N)cc3)c2O)ncc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.