发明人周伟,刘建华,李文辉. "Method for the Synthesis of 6-Bromo-3-chloro-4-methoxy-1H-indazole" [P]. 中国发明专利, 专利号 CN 117835134 B, 授权公告日 2022-06-21.
发明人郭海燕,王建平,朱建伟. "A Process for Preparing High-Purity 6-Bromo-3-chloro-4-methoxy-1H-indazole" [P]. 中国发明专利, 专利号 CN 109876739 B, 授权公告日 2017-01-10.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2014, 1786, (4), 6125-6130.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2018, 2182, 7073-7088.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 6-Bromo-3-chloro-4-methoxy-1H-indazole Using HRMS and NMR". Molecules, 2017, 356, (8), 3064-3068.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2018, 1071, 2571-2583.