Sørensen M, Lefèvre J P, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3999310 A1, 2016-03-13.
发明人李文辉,杨光,黄志刚. "Method for the Synthesis of 3-Ethyl-5,6,7,8-tetrahydroindolizine-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116223844 B, 授权公告日 2023-11-24.
发明人郭海燕,李文辉,王建平. "A Process for Preparing High-Purity 3-Ethyl-5,6,7,8-tetrahydroindolizine-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110320847 A, 授权公告日 2019-11-20.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2020, 461, 5057-5063.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2017, 1620, (6), 5986-5991.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-5,6,7,8-tetrahydroindolizine-1-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2017, 1965, (1), 5192-5202.