Nowak P, Kowalski A, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3672496 A1, 2018-04-23.
发明人何建平,黄志刚,孙丽萍. "Method for the Synthesis of 5-Bromo-1-methyl-1H-pyrazolo[3,4-b]pyridin-6(7H)-one" [P]. 中国发明专利, 专利号 CN 112632460 B, 授权公告日 2018-08-04.
发明人王建平,赵玉洁,郑宇鹏. "A Process for Preparing High-Purity 5-Bromo-1-methyl-1H-pyrazolo[3,4-b]pyridin-6(7H)-one" [P]. 中国发明专利, 专利号 CN 108346121 B, 授权公告日 2021-02-20.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2021, 1350, (8), 4006-4010.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2021, 741, 1192-1200.