发明人张德明,韩伟,唐晓军. "一种(S)-1-((S)-2-(((S)-1-乙氧基-1-氧代-4-苯基丁-2-基)氨基)丙酰基)吡咯烷-2-羧酸x马来酸盐的合成方法" [P]. 中国发明专利, 专利号 CN 114641013 A, 授权公告日 2015-08-01.
发明人杨光,胡光,沈红梅. "Method for the Synthesis of ((R)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)-L-alanyl-l-proline xMaleate" [P]. 中国发明专利, 专利号 CN 115785899 A, 授权公告日 2022-01-08.
Fischer A B, Klinger H, Davis P L. "A Process for Preparing High-Purity ((R)-1-ethoxy-1-oxo-4-phenylbutan-2-yl)-L-alanyl-l-proline xMaleate" [P]. US Patent, US 9356258 B2, 2019-12-17.
参考文献 Literature
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