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.
本发明涉及一种制备公式(i)化合物或其盐的过程,其中R1和R1'独立地是氢或
氨基保护基,R2是羧基或酯基,包括在过渡
金属催化剂和手性
配体的存在下,将公式(ii)化合物或其盐,其中R1、R1'和R2如上所定义,与氢反应。其中,所述过渡
金属选自周期表的7、8或9组。此外,本发明还涉及通过该过程获得的产品及其在制备
NEP抑制剂中的应用。此外,本发明还涉及在制备
NEP抑制剂或其前药中使用过渡
金属催化剂的用途。