发明人沈红梅,杨光,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114007799 A, 授权公告日 2019-03-18.
发明人张德明,赵玉洁,朱建伟. "Method for the Synthesis of 4-Ethyl-3-(pyridin-4-yl)-1h-pyrazol-5-amine" [P]. 中国发明专利, 专利号 CN 114998891 A, 授权公告日 2025-02-18.
Brown S R, Patel M V, Stevens L M. "A Process for Preparing High-Purity 4-Ethyl-3-(pyridin-4-yl)-1h-pyrazol-5-amine" [P]. US Patent, US 11456066 B2, 2025-12-16.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2024, 1304, (3), 8615-8628.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2022, 2104, 3180-3204.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethyl-3-(pyridin-4-yl)-1h-pyrazol-5-amine Using HRMS and NMR". Chemosphere, 2015, 1079, (10), 598-619.