发明人赵玉洁,朱建伟,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110137021 A, 授权公告日 2016-03-27.
发明人徐明华,朱建伟,沈红梅. "Method for the Synthesis of 5-(Chlorodifluoromethyl)-1-(2-hydroxyethyl)-3-methyl-1h-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109256009 B, 授权公告日 2023-07-13.
发明人王建平,沈红梅,陈志强. "A Process for Preparing High-Purity 5-(Chlorodifluoromethyl)-1-(2-hydroxyethyl)-3-methyl-1h-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113363020 A, 授权公告日 2020-04-13.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2022, 1190, 4706-4710.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2018, 327, (4), 1658-1674.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 5-(Chlorodifluoromethyl)-1-(2-hydroxyethyl)-3-methyl-1h-pyrazole-4-carboxylic acid Using HRMS and NMR". Anal. Chem., 2014, 2097, (10), 4252-4273.