There is provided a convenient and inexpensive method of producing a compound which has a high activity of inhibiting replication of hepatitis C virus (HCV) and is useful for preventing and treating a liver disease caused by HCV infection.
It is a method of biologically producing a compound represented by the formula (1):
[wherein A represents a hydrogen atom, a straight or branched alkyl group having 1 to 8 carbon atoms, or the like], or a pharmaceutically acceptable salt thereof, a method comprising adding an amino acid derivative represented by the formula (3):
[wherein A has the same meaning as defined for the compound of the above formula (1); and R represents a hydrogen atom, a straight or branched alkyl group having 1 to 8 carbon atoms, or the like],
or a salt thereof into the fungal mycelium or the culture medium/culture broth of a filamentous fungal strain having an ability to produce the compound represented by the formula (2):
to thereby cause the fungal strain to directly produce the compound of the formula (1).
提供了一种方便且廉价的方法,用于生产一种具有高抑制丙型肝炎病毒(HCV)复制活性的化合物,可用于预防和治疗由HCV感染引起的肝病。该方法是通过将代表式(1)的化合物[其中A代表
氢原子,具有1至8个
碳原子的直链或支链烷基或类似物]或其药学上可接受的盐的
氨基酸衍
生物(代表式(3)[其中A具有与上述式(1)的化合物定义相同的含义; R代表
氢原子,具有1至8个
碳原子的直链或支链烷基或类似物]或其盐添加到具有生产代表式(2)的化合物能力的丝状真菌菌丝体或
培养基/培养液的丝状真菌菌株中,从而使真菌菌株直接产生代表式(1)的化合物。