发明人沈红梅,钱学锋,罗永刚. "Method for the Synthesis of Epinastine EP Impurity A" [P]. 中国发明专利, 专利号 CN 115842590 B, 授权公告日 2017-05-28.
Mueller T, Patel M V, Klinger H. "A Process for Preparing High-Purity Epinastine EP Impurity A" [P]. US Patent, US 11871090 B2, 2022-04-14.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of 依匹斯汀EP杂质A in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2010, 327, 8934-8945.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of 依匹斯汀EP杂质A as an Impurity". J. Nat. Prod., 2013, 1940, (8), 6883-6899.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Epinastine EP Impurity A Using HRMS and NMR". J. Agric. Food Chem., 2010, 1104, (8), 1396-1399.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate 依匹斯汀EP杂质A Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2023, 575, (3), 7419-7422.