发明人孙丽萍,冯建国,黄志刚. "Method for the Synthesis of Clopidogrel Impurity 9" [P]. 中国发明专利, 专利号 CN 113405896 A, 授权公告日 2020-05-22.
Nowak P, Lefèvre J P, Mueller T C. "A Process for Preparing High-Purity Clopidogrel Impurity 9" [P]. European Patent, EP 3501787 A1, 2018-07-02.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 氯吡格雷杂质9 in Pharmaceutical Formulations". Chemosphere, 2018, 1867, 7538-7559.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of 氯吡格雷杂质9 as an Impurity". Sci. Total Environ., 2016, 364, (8), 5271-5287.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Clopidogrel Impurity 9 Using HRMS and NMR". Anal. Chem., 2017, 1054, 773-779.