发明人孙丽萍,马晓峰,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116900618 A, 授权公告日 2025-12-11.
发明人唐晓军,杨光,马晓峰. "Method for the Synthesis of 4-Fluoro-6-methoxy-1H-indazole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 114059267 A, 授权公告日 2021-08-02.
发明人罗永刚,高志强,胡光. "A Process for Preparing High-Purity 4-Fluoro-6-methoxy-1H-indazole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 116013901 A, 授权公告日 2023-03-10.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2016, 1042, 2325-2329.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2015, 491, (5), 9023-9044.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4-Fluoro-6-methoxy-1H-indazole-3-carbonitrile Using HRMS and NMR". Anal. Methods, 2011, 1484, (9), 1126-1155.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2019, 424, 4416-4431.