发明人郑宇鹏,朱建伟,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113568044 A, 授权公告日 2020-06-17.
发明人王建平,胡光,冯建国. "Method for the Synthesis of 1-(3,5-Difluorophenyl)-5-hydroxy-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109700886 B, 授权公告日 2016-03-12.
Kumar R, Brown S R, Stevens L M. "A Process for Preparing High-Purity 1-(3,5-Difluorophenyl)-5-hydroxy-1H-pyrazole-4-carboxylic acid" [P]. US Patent, US 11527417 B2, 2022-02-26.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2017, 1502, (5), 1804-1807.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2022, 302, 9789-9800.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 1-(3,5-Difluorophenyl)-5-hydroxy-1H-pyrazole-4-carboxylic acid Using HRMS and NMR". J. Sep. Sci., 2022, 570, (12), 4914-4917.