发明人唐晓军,韩伟,陈志强. "Method for the Synthesis of Diltiazem EP Impurity A HCl" [P]. 中国发明专利, 专利号 CN 115297017 B, 授权公告日 2023-01-21.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 地尔硫卓EP杂质A HCl in Pharmaceutical Formulations". Anal. Chim. Acta, 2024, 517, (4), 1285-1314.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of 地尔硫卓EP杂质A HCl as an Impurity". J. Sep. Sci., 2019, 723, 6687-6708.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Diltiazem EP Impurity A HCl Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2015, 1015, 2876-2902.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate 地尔硫卓EP杂质A HCl Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2017, 1818, (12), 797-819.