发明人罗永刚,孙丽萍,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115244041 A, 授权公告日 2015-03-13.
Mueller T C, Lefèvre J P, Nielsen H. "Method for the Synthesis of 1-(3-Chloro-2-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. European Patent, EP 3516337 A1, 2022-01-01.
Mueller T, Schröder R, Thompson G K. "A Process for Preparing High-Purity 1-(3-Chloro-2-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one" [P]. US Patent, US 10914378 B2, 2022-12-09.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2017, 717, 4160-4188.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2014, 2295, (4), 9765-9791.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 1-(3-Chloro-2-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one Using HRMS and NMR". J. Nat. Prod., 2022, 1435, 476-492.