发明人周伟,孙丽萍,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116664760 A, 授权公告日 2018-07-01.
Lefèvre J P, Kowalski A, Nowak P. "Method for the Synthesis of 2-Chloro-4-ethyl-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile" [P]. European Patent, EP 3519676 A1, 2015-06-03.
发明人何建平,胡光,刘建华. "A Process for Preparing High-Purity 2-Chloro-4-ethyl-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 113146214 B, 授权公告日 2021-03-14.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2011, 2206, 9171-9184.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2023, 1523, 7243-7263.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 2-Chloro-4-ethyl-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile Using HRMS and NMR". J. Agric. Food Chem., 2025, 1809, (10), 3992-4008.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2025, 1982, (3), 6672-6698.