Using CCC1(CC(=O)OC)CCC=C(Br)C1=O, Cl[Mg]Cc1ccccc1 to produce CCC1(CC(=O)OC)CCC(Cc2ccccc2)C(Br)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.