A method for preparing a halofuginone derivative, in particular a method for preparing an inhibitor medicament expressed by specific I-type procollagen in the invention a condensate of formula (II) reacts for 12-35 hours in a catalytic hydrogenation solvent with the existence of Ni—B amorphous alloy catalyst, at the hydrogen pressure of 0.1-10 Mpa and at the temperature of 10-60° C., and then the catalyst is filtered, the filtrate is decompressed to recover the solvent, the pH value is regulated to obtain a crude product of formula (I), and the crude product of the formula (I) is refined to obtain a refined product of formula (I).
一种制备半
氟吡咯醇衍
生物的方法,特别是一种制备在发明中通过特定I型前胶原表达的
抑制剂药物的方法,其中公式(II)的缩聚物在存在Ni—B非晶合
金催化剂的催化氢化溶剂中,在0.1-10 Mpa的氢压和10-60°C的温度下反应12-35小时,然后过滤催化剂,将滤液减压以回收溶剂,调节pH值以获得公式(I)的粗产品,将公式(I)的粗产品精制以获得公式(I)的精制产品。