发明人徐明华,郑宇鹏,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111494394 A, 授权公告日 2025-07-11.
发明人沈红梅,刘建华,马晓峰. "Method for the Synthesis of *Barbital Impurity 2 (Secbutabarbital)-d5" [P]. 中国发明专利, 专利号 CN 108097982 A, 授权公告日 2022-08-16.
Davis P L, Johnson M A, Schröder R. "A Process for Preparing High-Purity *Barbital Impurity 2 (Secbutabarbital)-d5" [P]. US Patent, US 9925108 B2, 2025-09-13.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2012, 118, (6), 9240-9270.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2015, 877, 5854-5876.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of *Barbital Impurity 2 (Secbutabarbital)-d5 Using HRMS and NMR". J. Sep. Sci., 2016, 1217, (6), 7119-7130.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2013, 405, (9), 4984-4998.