The invention provides a method for preparing a lisinopril intermediate, comprising: treating (R)-hydroxy-4-phenylbutyrate with sulfonyl chloride in an organic solvent in the presence of a base to obtain a solution of sulfonate; reacting the obtained solution with a salt of trifluoroacetyl lysine; and obtaining a N2-[1-(S)-alkoxycarbonyl-3-phenylpropyl]-N6-trifluoroacetyl-L-lysine by separating after the reaction is completed. The method for preparing lisinopril intermediate provided by the invention has a shorter synthesis route, is easy to operate, has a low cost, and is suitable for industrial production.
本发明提供了一种赖
氨普利中间体的制备方法,包括:在碱存在下,在有机溶剂中用
磺酰氯处理(R)-羟基-
4-苯基丁酸酯,得到
磺酸盐溶液;将得到的溶液与
三氟乙酰赖氨酸盐反应;反应完成后通过分离得到N2-[1-(S)-烷氧羰基-3-苯基丙基]-N6-三
氟乙酰-
L-赖氨酸。本发明提供的利辛普利中间体的制备方法合成路线较短,操作简便,成本较低,适合工业化生产。