Kowalski A, Jørgensen K, Johansson L. "Method for the Synthesis of Penbutolol EP Impurity A" [P]. European Patent, EP 3611242 A1, 2019-10-28.
发明人张德明,林芳,胡光. "A Process for Preparing High-Purity Penbutolol EP Impurity A" [P]. 中国发明专利, 专利号 CN 116346179 A, 授权公告日 2018-01-07.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 潘布洛尔 EP 杂质 A in Pharmaceutical Formulations". Biomed. Chromatogr., 2011, 1142, 3815-3838.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of 潘布洛尔 EP 杂质 A as an Impurity". Phytochemistry, 2017, 2351, (9), 5591-5606.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Penbutolol EP Impurity A Using HRMS and NMR". J. Sep. Sci., 2020, 1894, 2827-2855.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate 潘布洛尔 EP 杂质 A Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2010, 292, (10), 8761-8776.