Johnson M A, Patel M V, Klinger H. "一种的合成方法" [P]. US Patent, US 11946345 B2, 2021-07-19.
发明人罗永刚,孙丽萍,钱学锋. "Method for the Synthesis of 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 5-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115186653 A, 授权公告日 2021-11-27.
Mueller T, O'Brien P Q, Patel M V. "A Process for Preparing High-Purity 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 5-methylthiophene-2-carboxylate" [P]. US Patent, US 9891619 B2, 2020-07-05.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2017, 2258, 7365-7381.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2023, 181, (11), 8857-8867.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 5-methylthiophene-2-carboxylate Using HRMS and NMR". Chemosphere, 2018, 2115, (11), 1557-1567.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2015, 1136, (12), 1105-1131.