Using Br[Mg]c1ccccc1, CN1CCN(c2cccc3ccc(C(=O)c4ccccc4)cc23)CC1 to produce CN1CCN(c2cccc3ccc(C(O)(c4ccccc4)c4ccccc4)cc23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.