发明人李文辉,冯建国,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109265139 A, 授权公告日 2018-05-13.
发明人林芳,钱学锋,张德明. "Method for the Synthesis of 4-Amino-1-ethyl-N-((1-methyl-1h-pyrazol-4-yl)methyl)-1h-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 111703366 B, 授权公告日 2016-05-13.
发明人钱学锋,孙丽萍,陈志强. "A Process for Preparing High-Purity 4-Amino-1-ethyl-N-((1-methyl-1h-pyrazol-4-yl)methyl)-1h-pyrazole-5-carboxamide" [P]. 中国发明专利, 专利号 CN 110013391 B, 授权公告日 2016-12-25.
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". Anal. Chim. Acta, 2024, 1919, 4138-4160.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2018, 2307, (4), 9344-9367.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-1-ethyl-N-((1-methyl-1h-pyrazol-4-yl)methyl)-1h-pyrazole-5-carboxamide Using HRMS and NMR". Biomed. Chromatogr., 2011, 241, (2), 8951-8967.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2024, 551, 4055-4081.