发明人胡光,陈志强,钱学锋. "Method for the Synthesis of 3-(1-Ethyl-1h-pyrazol-4-yl)-2,2-dimethylpropanoic acid" [P]. 中国发明专利, 专利号 CN 114345662 B, 授权公告日 2017-10-08.
发明人胡光,郑宇鹏,林芳. "A Process for Preparing High-Purity 3-(1-Ethyl-1h-pyrazol-4-yl)-2,2-dimethylpropanoic acid" [P]. 中国发明专利, 专利号 CN 116028156 B, 授权公告日 2021-10-16.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 1178, 6441-6469.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2012, 1398, (8), 5196-5209.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 3-(1-Ethyl-1h-pyrazol-4-yl)-2,2-dimethylpropanoic acid Using HRMS and NMR". J. Chromatogr. A, 2023, 1419, 635-654.