发明人陈志强,冯建国,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109125651 A, 授权公告日 2020-03-22.
Park J H, Stevens L M, Hughes D C. "Method for the Synthesis of Methyl 6-bromo-1-methyl-1H-indazole-3-carboxylate" [P]. US Patent, US 9557436 B2, 2018-07-01.
发明人郑宇鹏,何建平,冯建国. "A Process for Preparing High-Purity Methyl 6-bromo-1-methyl-1H-indazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112601752 A, 授权公告日 2021-07-17.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2020, 523, (1), 3205-3235.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2015, 1435, (10), 4128-4153.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 6-bromo-1-methyl-1H-indazole-3-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2012, 1313, (2), 4886-4914.