Using CC(=O)c1ccccc1-n1nc2c3ccccc3n(Cc3ccc(-n4cccn4)cc3)cc-2c1=O, C[Mg]Br to produce CC(C)(O)c1ccccc1-n1nc2c3ccccc3n(Cc3ccc(-n4cccn4)cc3)cc-2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.