发明人胡光,马晓峰,郑宇鹏. "Method for the Synthesis of 5-Sulfamoyl-1H-indazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110859943 B, 授权公告日 2021-10-21.
发明人李文辉,黄志刚,王建平. "A Process for Preparing High-Purity 5-Sulfamoyl-1H-indazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115382379 B, 授权公告日 2023-12-15.
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". Chemosphere, 2019, 1456, (3), 8478-8496.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2020, 2218, 210-217.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 5-Sulfamoyl-1H-indazole-3-carboxylic acid Using HRMS and NMR". Anal. Chim. Acta, 2017, 1734, (10), 3749-3754.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2019, 1726, (2), 561-582.