Lacosamide is an important anti-epilepsy drug and O-methyl-d-serine is a relevant intermediate in the synthesis of lacosamide. Optically active O-methyl-d-serine was prepared by using a chemoenzymatic method from inexpensive acrylamide. Our method is a four-step reaction sequence: bromination of acrylamide; etherification of dibromopropionamide; ammonolysis of α-bromo-β-methoxy-propionamide; enzymatic
拉科酰胺是一种重要的抗癫痫药物和ö甲基d -
丝氨酸是拉科胺的合成相关的中间体。光学活性ø甲基d -
丝氨酸的制备是通过使用
化学酶促方法从便宜的
丙烯酰胺。我们的方法分四个步骤进行:
丙烯酰胺的
溴化反应;
丙烯酰胺的
溴化反应。二
溴丙酰胺的醚化;α-
溴-β-甲氧基丙酰胺的
氨解 酶外消旋和选择性
水解。由α-
氨基-ε-己内酰胺消旋酶(Locus,E01594)和d-立体特异性
氨基酸酰胺酶(Locus,AB026907)组成的双酶催化剂体系已成功用于生产对映体纯的O-甲基-d-
丝氨酸(ee> 99.8%),高产(> 98.5%)。光学活性ø甲基d用的81.3%的总收率得到-
丝氨酸。