发明人王建平,张德明,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108540940 A, 授权公告日 2017-04-27.
发明人孙丽萍,刘建华,林芳. "Method for the Synthesis of 2-(3-Cyclopropyl-1H-pyrazolo[3,4-b]pyridin-1-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 112969784 B, 授权公告日 2022-06-23.
发明人李文辉,马晓峰,何建平. "A Process for Preparing High-Purity 2-(3-Cyclopropyl-1H-pyrazolo[3,4-b]pyridin-1-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 114103012 A, 授权公告日 2019-06-09.
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". Anal. Methods, 2020, 1197, (2), 503-528.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2017, 324, (8), 7948-7964.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-(3-Cyclopropyl-1H-pyrazolo[3,4-b]pyridin-1-yl)acetic acid Using HRMS and NMR". Food Chem., 2022, 2277, 4966-4992.