发明人周伟,唐晓军,冯建国. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116345250 A, 授权公告日 2015-09-22.
Yamamoto T, Park J H, Johnson M A. "Method for the Synthesis of 3,6-Dicyclopropyl-1-(2-fluorophenyl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. US Patent, US 11362714 B2, 2019-02-08.
发明人孙丽萍,黄志刚,李文辉. "A Process for Preparing High-Purity 3,6-Dicyclopropyl-1-(2-fluorophenyl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109815168 B, 授权公告日 2017-03-03.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2021, 894, (6), 1698-1720.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2011, 2420, (8), 8850-8860.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 3,6-Dicyclopropyl-1-(2-fluorophenyl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2011, 1728, (11), 6236-6246.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2010, 1816, (8), 9901-9915.