The present invention provides a process for simply producing an optically active 2-thiomethyl-3-phenylpropionic acid derivative useful as an intermediate for medicines from inexpensive raw materials. An optically active 2-hydroxymethyl-3-phenylpropionic acid ester derivative which can be relatively easily obtained by asymmetric reduction reaction with an enzyme is cyclized to an optically active P-lactone derivative which is then reacted with a sulfur compound to produce an optically active 2-thiomethyl-3-phenylpropionic acid derivative in high yield.
本发明提供一种从廉价原料简单制备用于药物中间体的光学活性2-
硫代甲基-3-
苯丙酸衍
生物的方法。通过酶的不对称还原反应可以相对容易地得到一种光学活性的2-羟甲基-3-
苯丙酸酯衍
生物,该衍
生物被环化成为一种光学活性的P-内酯衍
生物,然后与
硫化合物反应,高产率地产生一种光学活性的2-
硫代甲基-3-
苯丙酸衍
生物。