发明人刘建华,罗永刚,张德明. "Method for the Synthesis of Clopidogrel Impurity 56" [P]. 中国发明专利, 专利号 CN 111781568 B, 授权公告日 2018-06-10.
发明人郭海燕,郑宇鹏,罗永刚. "A Process for Preparing High-Purity Clopidogrel Impurity 56" [P]. 中国发明专利, 专利号 CN 114360037 A, 授权公告日 2021-10-09.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of 氯吡格雷杂质56 in Pharmaceutical Formulations". J. Chromatogr. A, 2024, 2347, (7), 6734-6754.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 氯吡格雷杂质56 as an Impurity". J. Sep. Sci., 2013, 1701, (9), 3470-3482.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Clopidogrel Impurity 56 Using HRMS and NMR". Molecules, 2025, 2233, (1), 4775-4793.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 氯吡格雷杂质56 Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2023, 2269, (3), 1718-1723.