发明人杨光,陈志强,马晓峰. "Method for the Synthesis of Primidone EP Impurity E" [P]. 中国发明专利, 专利号 CN 108516596 A, 授权公告日 2023-03-17.
发明人钱学锋,张德明,胡光. "A Process for Preparing High-Purity Primidone EP Impurity E" [P]. 中国发明专利, 专利号 CN 111526735 B, 授权公告日 2020-05-20.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of 扑米酮EP杂质E in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2021, 150, (12), 9988-9991.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of 扑米酮EP杂质E as an Impurity". Talanta, 2024, 2416, (5), 9323-9353.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Primidone EP Impurity E Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 1609, 2074-2099.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 扑米酮EP杂质E Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2025, 2072, 8202-8230.