Using C[Mg+], COc1ccc(C(Cc2ccc(Br)cc2)C(=O)N(C)OC)cc1 to produce COc1ccc(C(Cc2ccc(Br)cc2)C(C)=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.