发明人徐明华,郭海燕,高志强. "Method for the Synthesis of ethyl 4-amino-1-methyl-1H-pyrazole-5-carboxylate,HCl" [P]. 中国发明专利, 专利号 CN 113419775 A, 授权公告日 2016-04-25.
发明人胡光,何建平,张德明. "A Process for Preparing High-Purity ethyl 4-amino-1-methyl-1H-pyrazole-5-carboxylate,HCl" [P]. 中国发明专利, 专利号 CN 111441863 A, 授权公告日 2019-07-03.
参考文献 Literature
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Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of ethyl 4-amino-1-methyl-1H-pyrazole-5-carboxylate,HCl as an Impurity". Molecules, 2025, 1707, 9045-9072.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 4-amino-1-methyl-1H-pyrazole-5-carboxylate,HCl Using HRMS and NMR". Chromatographia, 2019, 2111, 4909-4937.