发明人唐晓军,孙丽萍,沈红梅. "Method for the Synthesis of 2-(3,5-Diethyl-1-methyl-1h-pyrazol-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109322506 A, 授权公告日 2018-06-23.
发明人刘建华,高志强,韩伟. "A Process for Preparing High-Purity 2-(3,5-Diethyl-1-methyl-1h-pyrazol-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 115221576 B, 授权公告日 2022-03-23.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2021, 2357, 7193-7213.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2015, 2165, (5), 4779-4797.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-(3,5-Diethyl-1-methyl-1h-pyrazol-4-yl)acetic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2012, 1281, (10), 9089-9101.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2015, 1179, (2), 976-979.