发明人郑宇鹏,沈红梅,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111573076 A, 授权公告日 2015-06-04.
Lefèvre J P, Nielsen H, Rossi M. "Method for the Synthesis of (4AS,8aS)-tert-butyl hexahydro-1H-pyrido[3,4-b][1,4]oxazine-6(7H)-carboxylate" [P]. European Patent, EP 3957152 A1, 2021-10-17.
发明人刘建华,钱学锋,马晓峰. "A Process for Preparing High-Purity (4AS,8aS)-tert-butyl hexahydro-1H-pyrido[3,4-b][1,4]oxazine-6(7H)-carboxylate" [P]. 中国发明专利, 专利号 CN 117697185 A, 授权公告日 2024-09-15.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2012, 580, 1773-1783.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2025, 1625, 1195-1208.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (4AS,8aS)-tert-butyl hexahydro-1H-pyrido[3,4-b][1,4]oxazine-6(7H)-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2025, 1073, (1), 4710-4713.