发明人韩伟,孙丽萍,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109220911 A, 授权公告日 2022-05-16.
发明人韩伟,李文辉,沈红梅. "Method for the Synthesis of Cholesterol Impurity 13" [P]. 中国发明专利, 专利号 CN 111442424 A, 授权公告日 2023-03-07.
发明人张德明,黄志刚,杨光. "A Process for Preparing High-Purity Cholesterol Impurity 13" [P]. 中国发明专利, 专利号 CN 112322777 A, 授权公告日 2019-09-21.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2013, 1012, 7241-7268.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2021, 173, (9), 9485-9515.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Cholesterol Impurity 13 Using HRMS and NMR". Environ. Sci. Technol., 2023, 1446, (12), 346-366.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2025, 81, (9), 5396-5408.