发明人马晓峰,张德明,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115447197 A, 授权公告日 2019-08-23.
发明人朱建伟,郭海燕,罗永刚. "Method for the Synthesis of 5-((4-(Ethyl(phenyl)carbamoyl)phenyl)amino)-5-oxopentanoic acid" [P]. 中国发明专利, 专利号 CN 110576252 B, 授权公告日 2017-09-10.
发明人唐晓军,郑宇鹏,高志强. "A Process for Preparing High-Purity 5-((4-(Ethyl(phenyl)carbamoyl)phenyl)amino)-5-oxopentanoic acid" [P]. 中国发明专利, 专利号 CN 117045923 A, 授权公告日 2019-02-08.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2012, 2086, (11), 8463-8479.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2018, 2438, 3002-3022.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 5-((4-(Ethyl(phenyl)carbamoyl)phenyl)amino)-5-oxopentanoic acid Using HRMS and NMR". Molecules, 2020, 375, 9941-9961.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2010, 1013, 9705-9722.