The present invention relates to a novel method for producing a compound of the formula [11] wherein R is an optionally substituted aromatic hydrocarbon group, an optionally substituted alicyclic hydrocarbon group, an optionally substituted heterocyclic group or an optionally substituted condensed heterocyclic group, which is useful as a therapeutic agent for diabetes. The method of the present invention is an industrially utilizable method that enables efficient production of the objective compound [11] from β-methyl L-aspartate via an important intermediate compound [6] wherein R is as defined above, at high yield.
本发明涉及一种生产式[11]化合物的新方法,其中R为任选取代的
芳香烃基团、任选取代的脂
环烃基团、任选取代的杂环基团或任选取代的缩合杂环基团,该化合物可用作糖尿病的治疗剂。本发明的方法是一种可在工业上使用的方法,它能通过一种重要的中间体化合物[6](其中R如上文所定义)从β-甲基
L-天冬氨酸中高效地生产出目标化合物[11],且收率高。