发明人何建平,唐晓军,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116353238 A, 授权公告日 2025-02-08.
发明人胡光,马晓峰,赵玉洁. "Method for the Synthesis of 1H-pyrazolo[3,4-c]pyridine-7-carboxylic acid, ethyl ester" [P]. 中国发明专利, 专利号 CN 113882775 A, 授权公告日 2019-01-13.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2019, 1450, 7894-7901.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2017, 316, (6), 9100-9120.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1H-pyrazolo[3,4-c]pyridine-7-carboxylic acid, ethyl ester Using HRMS and NMR". J. Agric. Food Chem., 2013, 1264, (3), 1675-1692.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2023, 2416, (11), 762-771.