发明人林芳,陈志强,刘建华. "Method for the Synthesis of 2-Sulfanyl-5H,6H,7H-cyclopenta[b]pyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112518716 B, 授权公告日 2024-10-07.
发明人徐明华,黄志刚,唐晓军. "A Process for Preparing High-Purity 2-Sulfanyl-5H,6H,7H-cyclopenta[b]pyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111974518 B, 授权公告日 2018-05-11.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2020, 108, (1), 3124-3128.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2016, 548, 759-777.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 2-Sulfanyl-5H,6H,7H-cyclopenta[b]pyridine-3-carboxylic acid Using HRMS and NMR". Anal. Chem., 2014, 2429, (5), 8448-8457.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2012, 1076, 8953-8963.