发明人郑宇鹏,李文辉,马晓峰. "Method for the Synthesis of 6-Ethynyl-1H-indazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111417962 A, 授权公告日 2018-11-24.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2011, 1551, (4), 5151-5167.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2020, 469, 1051-1063.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 6-Ethynyl-1H-indazole-3-carboxylic acid Using HRMS and NMR". Anal. Methods, 2011, 223, (10), 3372-3383.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2016, 2322, (11), 2151-2174.