申请人:Tsunoda Hidetoshi
公开号:US20080114053A1
公开(公告)日:2008-05-15
An object of the present invention is to provide a method for efficiently producing a high-purity fluorinated proline derivative with high yield. A method for producing a compound represented by the general formula (2),
(In the formula, R1 represents an unsubstituted or substituted alkyl group having 1 to 6 carbon atoms or the like, and R2 represents an unsubstituted or substituted alkyl group having 1 to 6 carbon atoms or the like, and R3 represents a hydroxyl group or the like) wherein a compound represented by the general formula (1)
(In the formula, R1 and R2 are defined as in the general formula (1)) is reacted with a fluorination agent to obtain a reaction product containing the compound represented by the general formula (2) and a by-products; and bringing chlorine, bromine, iodine, hypochlorous acid, hypochlorite, hypobromous acid, hypobromite or N-halogenosuccinimide into action on the reaction product to chemically change the by-product.
本发明的目的是提供一种高产、高纯度的氟代脯氨酸衍生物的有效生产方法。该方法包括:将一种由通式(1)表示的化合物(其中,R1和R2如通式(1)中所定义)与氟化剂反应,得到含有由通式(2)表示的化合物和副产物的反应产物;并将氯、溴、碘、次氯酸、次氯酸盐、次溴酸、次溴酸盐或N-卤代琥珀酰亚胺作用于反应产物,以化学改变副产物。其中,通式(2)中,R1表示1至6个碳原子的未取代或取代的烷基或类似物,R2表示1至6个碳原子的未取代或取代的烷基或类似物,R3表示羟基或类似物。