发明人钱学锋,高志强,胡光. "Method for the Synthesis of 4-(2-Aminoethyl)-1-methyl-1H-pyrazol-5-amine" [P]. 中国发明专利, 专利号 CN 112050824 A, 授权公告日 2022-02-28.
发明人李文辉,韩伟,刘建华. "A Process for Preparing High-Purity 4-(2-Aminoethyl)-1-methyl-1H-pyrazol-5-amine" [P]. 中国发明专利, 专利号 CN 112531478 B, 授权公告日 2018-09-05.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2017, 1454, (7), 8430-8457.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 717, 713-740.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Aminoethyl)-1-methyl-1H-pyrazol-5-amine Using HRMS and NMR". Biomed. Chromatogr., 2011, 371, 5174-5192.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2022, 812, 1458-1475.