发明人林芳,罗永刚,李文辉. "一种戊酸雌二醇EP杂质B的合成方法" [P]. 中国发明专利, 专利号 CN 108198232 A, 授权公告日 2022-12-28.
发明人周伟,韩伟,徐明华. "Method for the Synthesis of Estradiol Valerate EP Impurity B" [P]. 中国发明专利, 专利号 CN 109642297 B, 授权公告日 2020-04-01.
发明人林芳,赵玉洁,胡光. "A Process for Preparing High-Purity Estradiol Valerate EP Impurity B" [P]. 中国发明专利, 专利号 CN 116500836 A, 授权公告日 2025-07-07.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 戊酸雌二醇EP杂质B in Pharmaceutical Formulations". Sci. Total Environ., 2022, 1439, (11), 7897-7925.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of 戊酸雌二醇EP杂质B as an Impurity". Biomed. Chromatogr., 2024, 700, (8), 4054-4080.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Estradiol Valerate EP Impurity B Using HRMS and NMR". J. Nat. Prod., 2023, 2245, 2122-2146.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate 戊酸雌二醇EP杂质B Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2014, 463, (2), 7077-7105.