Nielsen H, Björnsson E, Rossi M. "一种的合成方法" [P]. European Patent, EP 3825382 A1, 2023-05-08.
发明人周伟,林芳,王建平. "Method for the Synthesis of 2-((1-Cyano-1-cyclopropylethyl)amino)-2-oxoethyl 4-(5-chlorothiophen-2-yl)-4-oxobutanoate" [P]. 中国发明专利, 专利号 CN 112535709 B, 授权公告日 2018-09-18.
Yamamoto T, Fischer A B, Thompson G K. "A Process for Preparing High-Purity 2-((1-Cyano-1-cyclopropylethyl)amino)-2-oxoethyl 4-(5-chlorothiophen-2-yl)-4-oxobutanoate" [P]. US Patent, US 9361525 B2, 2022-08-26.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2016, 1551, 6068-6097.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2023, 1188, (5), 5480-5483.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 2-((1-Cyano-1-cyclopropylethyl)amino)-2-oxoethyl 4-(5-chlorothiophen-2-yl)-4-oxobutanoate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2015, 2246, (9), 2702-2707.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2016, 1227, (12), 4875-4892.