Lee S K, Brown S R, Park J H. "Method for the Synthesis of 4-Fluoro-3-iodo-1H-indazole-6-carboxylic acid" [P]. US Patent, US 11078481 B2, 2018-11-04.
发明人钱学锋,胡光,何建平. "A Process for Preparing High-Purity 4-Fluoro-3-iodo-1H-indazole-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113175638 B, 授权公告日 2021-02-21.
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". J. Sep. Sci., 2018, 2204, (12), 5673-5696.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2016, 2458, 7607-7631.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Fluoro-3-iodo-1H-indazole-6-carboxylic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2014, 800, (12), 4070-4096.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2019, 1254, (3), 2886-2898.