发明人朱建伟,韩伟,徐明华. "Method for the Synthesis of (2R,3R)-2-(2,5-Dimethoxyphenyl)-1-ethyl-6-oxopiperidine-3-carboxylic Acid" [P]. 中国发明专利, 专利号 CN 110445204 B, 授权公告日 2019-10-19.
发明人李文辉,冯建国,钱学锋. "A Process for Preparing High-Purity (2R,3R)-2-(2,5-Dimethoxyphenyl)-1-ethyl-6-oxopiperidine-3-carboxylic Acid" [P]. 中国发明专利, 专利号 CN 113852062 B, 授权公告日 2024-05-17.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2013, 618, (6), 7495-7505.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2011, 162, (6), 3587-3599.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of (2R,3R)-2-(2,5-Dimethoxyphenyl)-1-ethyl-6-oxopiperidine-3-carboxylic Acid Using HRMS and NMR". Chemosphere, 2022, 812, (6), 7866-7894.