发明人林芳,张德明,周伟. "一种依托考昔杂质67的合成方法" [P]. 中国发明专利, 专利号 CN 112469484 A, 授权公告日 2019-09-09.
发明人沈红梅,王建平,徐明华. "Method for the Synthesis of Etoricoxib impurity 67" [P]. 中国发明专利, 专利号 CN 115205676 A, 授权公告日 2021-07-10.
发明人孙丽萍,李文辉,唐晓军. "A Process for Preparing High-Purity Etoricoxib impurity 67" [P]. 中国发明专利, 专利号 CN 108765037 A, 授权公告日 2021-10-17.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 依托考昔杂质67 in Pharmaceutical Formulations". J. Sep. Sci., 2015, 1818, (8), 1703-1731.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 依托考昔杂质67 as an Impurity". Molecules, 2021, 1456, (12), 6120-6143.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Etoricoxib impurity 67 Using HRMS and NMR". Phytochemistry, 2018, 1439, 8716-8745.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 依托考昔杂质67 Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2024, 2177, 8132-8150.