发明人徐明华,王建平,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108047385 A, 授权公告日 2016-10-03.
发明人马晓峰,赵玉洁,胡光. "Method for the Synthesis of 1-Isopropyl-N-propyl-1h-pyrazolo[3,4-b]pyridin-5-amine" [P]. 中国发明专利, 专利号 CN 110674718 A, 授权公告日 2022-03-26.
发明人王建平,陈志强,冯建国. "A Process for Preparing High-Purity 1-Isopropyl-N-propyl-1h-pyrazolo[3,4-b]pyridin-5-amine" [P]. 中国发明专利, 专利号 CN 111250089 A, 授权公告日 2019-01-06.
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". Sci. Total Environ., 2023, 2302, 8509-8533.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2017, 1785, (11), 2224-2242.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1-Isopropyl-N-propyl-1h-pyrazolo[3,4-b]pyridin-5-amine Using HRMS and NMR". Talanta, 2014, 759, 3317-3336.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2021, 83, 2304-2330.