发明人胡光,冯建国,马晓峰. "Method for the Synthesis of Menaquinone Impurity 43" [P]. 中国发明专利, 专利号 CN 111948054 B, 授权公告日 2023-12-02.
发明人何建平,黄志刚,高志强. "A Process for Preparing High-Purity Menaquinone Impurity 43" [P]. 中国发明专利, 专利号 CN 113598955 A, 授权公告日 2016-09-27.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of 维生素K2杂质43 in Pharmaceutical Formulations". Chromatographia, 2017, 231, (2), 6785-6799.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 维生素K2杂质43 as an Impurity". Talanta, 2022, 176, (7), 9861-9878.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Menaquinone Impurity 43 Using HRMS and NMR". Chemosphere, 2012, 121, (12), 1841-1849.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 维生素K2杂质43 Profile in Drug Substances According to ICH Guidelines". Molecules, 2018, 348, 9300-9323.