The invention relates to a process for producing a compound according to formula (i)
or salt thereof,
wherein R1 and R1′ are independently hydrogen or an amine protecting group and R2 is a carboxyl group or an ester group, comprising reacting a compound according to formula (ii)
or salt thereof,
wherein R1, R1′ and R2 are defined as above, with hydrogen in the presence of a transition metal catalyst and a chiral ligand, wherein the transition metal is selected from group 7, 8 or 9 of the periodic table. Furthermore, the invention relates to products obtainable by said process and to their use in the production of NEP inhibitors. Moreover, the invention relates to the use of transition metal catalyst in the preparation of NEP inhibitors or prodrugs thereof.
本发明涉及一种生产化合物的方法,该化合物具有公式(i)或其盐,其中R1和R1'独立地表示氢或
氨基保护基,R2表示羧基或酯基,包括在过渡
金属催化剂和手性
配体的存在下,将具有公式(ii)或其盐的化合物与氢反应,其中R1、R1'和R2如上所定义,所述过渡
金属来自周期表中的第7、8或9组。此外,本发明涉及通过上述方法获得的产品及其在
NEP抑制剂生产中的用途。此外,本发明涉及过渡
金属催化剂在
NEP抑制剂或其前体制备中的应用。