发明人何建平,罗永刚,王建平. "Method for the Synthesis of 4-(Trifluoromethyl)-1,7-dihydro-6H-pyrazolo[3,4-b]pyridin-6-one" [P]. 中国发明专利, 专利号 CN 116101996 B, 授权公告日 2016-07-22.
发明人周伟,黄志刚,陈志强. "A Process for Preparing High-Purity 4-(Trifluoromethyl)-1,7-dihydro-6H-pyrazolo[3,4-b]pyridin-6-one" [P]. 中国发明专利, 专利号 CN 117222228 A, 授权公告日 2018-07-12.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2014, 2070, (9), 8466-8485.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2016, 329, 2749-2773.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Trifluoromethyl)-1,7-dihydro-6H-pyrazolo[3,4-b]pyridin-6-one Using HRMS and NMR". Chromatographia, 2020, 1947, (11), 6880-6909.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2025, 1502, 9000-9016.