发明人李文辉,杨光,胡光. "Method for the Synthesis of 2-Methyl-2H-indazole-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115531524 A, 授权公告日 2018-06-02.
Stevens L M, Davis P L, O'Brien P Q. "A Process for Preparing High-Purity 2-Methyl-2H-indazole-7-carboxylic acid" [P]. US Patent, US 10055874 B2, 2020-05-28.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 376, 2890-2893.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2016, 249, (5), 6480-6485.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 2-Methyl-2H-indazole-7-carboxylic acid Using HRMS and NMR". Molecules, 2012, 1073, 4321-4340.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2011, 1102, (5), 1163-1170.