发明人李文辉,钱学锋,马晓峰. "Method for the Synthesis of tert-Butyl 3-((3-(pyridin-3-yl)-1,2,4-oxadiazol-5-yl)methyl)azetidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 116396708 B, 授权公告日 2017-02-05.
发明人李文辉,孙丽萍,黄志刚. "A Process for Preparing High-Purity tert-Butyl 3-((3-(pyridin-3-yl)-1,2,4-oxadiazol-5-yl)methyl)azetidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 116708934 A, 授权公告日 2023-03-14.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2014, 1082, 3336-3350.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2016, 2329, (8), 4561-4589.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 3-((3-(pyridin-3-yl)-1,2,4-oxadiazol-5-yl)methyl)azetidine-1-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2016, 1804, (2), 8860-8867.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2011, 228, (4), 5902-5925.