发明人刘建华,韩伟,何建平. "Method for the Synthesis of 4-Ethyl-3-(pyridin-2-yl)-1h-pyrazol-5-amine" [P]. 中国发明专利, 专利号 CN 114695830 A, 授权公告日 2019-02-12.
发明人胡光,唐晓军,黄志刚. "A Process for Preparing High-Purity 4-Ethyl-3-(pyridin-2-yl)-1h-pyrazol-5-amine" [P]. 中国发明专利, 专利号 CN 117788221 A, 授权公告日 2021-07-27.
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". J. Nat. Prod., 2016, 217, 8987-8991.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2021, 2401, 6725-6743.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethyl-3-(pyridin-2-yl)-1h-pyrazol-5-amine Using HRMS and NMR". Anal. Methods, 2018, 1527, (10), 9402-9426.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2010, 1762, 1916-1943.