Sørensen M, Mueller T C, Jørgensen K. "一种非那雄胺杂质31的合成方法" [P]. European Patent, EP 3586742 A1, 2021-08-01.
Park J H, Thompson G K, Hughes D C. "Method for the Synthesis of Finasteride Impurity 31" [P]. US Patent, US 9578767 B2, 2020-07-10.
发明人林芳,杨光,王建平. "A Process for Preparing High-Purity Finasteride Impurity 31" [P]. 中国发明专利, 专利号 CN 108119390 A, 授权公告日 2022-11-13.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of 非那雄胺杂质31 in Pharmaceutical Formulations". Food Chem., 2023, 862, (12), 6621-6648.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of 非那雄胺杂质31 as an Impurity". Rapid Commun. Mass Spectrom., 2017, 1736, (5), 2196-2218.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Finasteride Impurity 31 Using HRMS and NMR". J. Sep. Sci., 2023, 366, 1650-1680.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate 非那雄胺杂质31 Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2015, 1079, 9906-9931.