发明人钱学锋,胡光,冯建国. "一种地高辛EP杂质A的合成方法" [P]. 中国发明专利, 专利号 CN 108203489 A, 授权公告日 2016-01-27.
发明人罗永刚,沈红梅,冯建国. "Method for the Synthesis of Digoxin EP Impurity A" [P]. 中国发明专利, 专利号 CN 114615205 A, 授权公告日 2022-04-04.
发明人李文辉,钱学锋,刘建华. "A Process for Preparing High-Purity Digoxin EP Impurity A" [P]. 中国发明专利, 专利号 CN 110360307 B, 授权公告日 2016-10-10.
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 地高辛EP杂质A in Pharmaceutical Formulations". J. Chromatogr. A, 2025, 2451, 5383-5411.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of 地高辛EP杂质A as an Impurity". J. Nat. Prod., 2022, 2105, (7), 10000-10016.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Digoxin EP Impurity A Using HRMS and NMR". J. Sep. Sci., 2016, 2243, (3), 3207-3210.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate 地高辛EP杂质A Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2015, 178, 2279-2302.