Davis P L, Thompson G K, Fischer A B. "一种布洛芬杂质50的合成方法" [P]. US Patent, US 11274419 B2, 2018-07-02.
Chen K W, Park J H, Fischer A B. "Method for the Synthesis of Ibuprofen Impurity 50" [P]. US Patent, US 9154778 B2, 2020-07-02.
发明人郭海燕,赵玉洁,韩伟. "A Process for Preparing High-Purity Ibuprofen Impurity 50" [P]. 中国发明专利, 专利号 CN 116933086 A, 授权公告日 2022-09-28.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of 布洛芬杂质50 in Pharmaceutical Formulations". Talanta, 2017, 1078, 4524-4529.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 布洛芬杂质50 as an Impurity". Anal. Chim. Acta, 2015, 947, 4607-4611.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Ibuprofen Impurity 50 Using HRMS and NMR". Anal. Methods, 2018, 259, (11), 684-691.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate 布洛芬杂质50 Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2024, 2372, 5212-5228.