Anderson J P, Mueller T, Hughes D C. "Method for the Synthesis of 1-(2-Carboxyethyl)-1h-pyrazole-3-carboxylic acid" [P]. US Patent, US 11276450 B2, 2015-02-05.
发明人林芳,何建平,韩伟. "A Process for Preparing High-Purity 1-(2-Carboxyethyl)-1h-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109896468 B, 授权公告日 2020-04-10.
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". Rapid Commun. Mass Spectrom., 2013, 2168, 7475-7504.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2025, 2070, 3334-3355.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2-Carboxyethyl)-1h-pyrazole-3-carboxylic acid Using HRMS and NMR". Anal. Chem., 2013, 1857, (9), 8010-8025.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2016, 1869, (9), 7992-8015.