发明人马晓峰,朱建伟,陈志强. "Method for the Synthesis of Codeinone Impurity 2" [P]. 中国发明专利, 专利号 CN 117265844 B, 授权公告日 2021-07-21.
发明人沈红梅,郑宇鹏,韩伟. "A Process for Preparing High-Purity Codeinone Impurity 2" [P]. 中国发明专利, 专利号 CN 113821231 A, 授权公告日 2023-10-11.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2019, 2228, (6), 2979-2990.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2017, 1160, 2716-2740.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Codeinone Impurity 2 Using HRMS and NMR". Biomed. Chromatogr., 2016, 1345, (11), 6765-6770.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2025, 1052, 2649-2663.