Klinger H, Johnson M A, Mueller T. "Method for the Synthesis of 4-nitro-1H-indazole-3-carboxylic acid" [P]. US Patent, US 9166123 B2, 2015-11-24.
发明人罗永刚,沈红梅,马晓峰. "A Process for Preparing High-Purity 4-nitro-1H-indazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115883539 A, 授权公告日 2019-08-08.
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". Anal. Chim. Acta, 2020, 111, 288-315.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2024, 1025, (10), 8443-8455.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 4-nitro-1H-indazole-3-carboxylic acid Using HRMS and NMR". Food Chem., 2021, 733, 6434-6447.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2010, 538, (3), 2089-2099.