发明人刘建华,郑宇鹏,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116184008 A, 授权公告日 2022-04-22.
Lee S K, Brown S R, Kumar R. "Method for the Synthesis of 4-Amino-5-methyl-1H-pyrazol-3(2H)-one dihydrochloride" [P]. US Patent, US 9772565 B2, 2023-11-13.
发明人罗永刚,何建平,陈志强. "A Process for Preparing High-Purity 4-Amino-5-methyl-1H-pyrazol-3(2H)-one dihydrochloride" [P]. 中国发明专利, 专利号 CN 109824525 B, 授权公告日 2025-03-11.
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". Phytochemistry, 2012, 2123, 688-711.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2016, 2162, (9), 3496-3512.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-5-methyl-1H-pyrazol-3(2H)-one dihydrochloride Using HRMS and NMR". J. Agric. Food Chem., 2011, 524, 713-717.