Using Cl[Mg]c1ccccc1, O=C(Cl)c1cccc(C(=O)Cl)c1 to produce O=C(c1ccccc1)c1cccc(C(=O)c2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.