发明人韩伟,郭海燕,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113429319 A, 授权公告日 2020-10-21.
发明人徐明华,陈志强,刘建华. "Method for the Synthesis of Methyl 7-nitro-1H-indazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 115504245 A, 授权公告日 2016-06-28.
发明人张德明,冯建国,何建平. "A Process for Preparing High-Purity Methyl 7-nitro-1H-indazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 115554326 A, 授权公告日 2016-06-08.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2021, 681, 1383-1392.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2010, 1559, 4094-4100.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 7-nitro-1H-indazole-5-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2018, 2070, (1), 8568-8592.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2017, 226, 4396-4420.