The present invention relates to a novel manufacturing process of pharmaceutically active compound of formula I used as oral anti-diabetic drug. Starting from L-aspartic acid derivate of formula IV the invention describes preparation of the chiral (R)-β-amino acid of formula II known as a precursor in the synthesis of Sitagliptin (formula I).
本发明涉及一种新型的制药活性化合物的制造工艺,该化合物的分子式为I,用作口服抗糖尿病药物。从分子式IV的
L-天冬氨酸衍
生物出发,该发明描述了制备手性(R)-β-
氨基酸的工艺,该手性(R)-β-
氨基酸被称为
西他列汀(分子式I)合成中的前体。