发明人唐晓军,黄志刚,刘建华. "Method for the Synthesis of Diltiazem Impurity 3" [P]. 中国发明专利, 专利号 CN 116003832 A, 授权公告日 2016-11-04.
发明人林芳,李文辉,杨光. "A Process for Preparing High-Purity Diltiazem Impurity 3" [P]. 中国发明专利, 专利号 CN 110423027 A, 授权公告日 2024-08-20.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2017, 390, (1), 3958-3978.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2023, 1057, (9), 1251-1261.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Diltiazem Impurity 3 Using HRMS and NMR". Anal. Methods, 2014, 1077, 8812-8822.