Using Br[Mg]c1ccccc1, COc1ccc(Br)cc1CN1CCN(c2ncccn2)CC1 to produce COc1ccc(-c2ccccc2)cc1CN1CCN(c2ncccn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.