described. Grignard coupling of polyprenyl diethyl phosphates with 1,4-dimethoxy-3-methyl-2-naphthylmagnesium bromide gave high yields of the polyprenylated hydroquinone dimethyl ethers regioselectively with the preservation of the stereochemistry. The precursors of coenzyme Q were similarly obtained by the coupling of 2,3,4,5-tetramethoxy-6-methylphenylmagnesium bromide and the polyprenyl phosphates. The
描述了
维生素 K 和辅酶 Q 的方便合成。聚
异戊二烯二
乙基磷酸酯与 1,4-二甲氧基-3-甲基-
2-萘基溴化镁的格氏偶联在保留立体
化学的情况下区域选择性地得到高产率的聚
异戊二烯化
氢醌二
甲醚。辅酶 Q 的前体类似地通过 2,3,4,5-四甲氧基-6-甲基
苯基溴化镁和聚
异戊二烯基
磷酸酯的偶联获得。已知合成的(聚
异戊二烯基)
氢醌二
甲醚被氧化为具有
生物活性的醌。