发明人郑宇鹏,胡光,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115650831 A, 授权公告日 2015-04-07.
发明人郑宇鹏,徐明华,何建平. "Method for the Synthesis of 7-Isopropyl-2-methylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116364199 B, 授权公告日 2017-12-05.
Johansson L, Rossi M, Kowalski A. "A Process for Preparing High-Purity 7-Isopropyl-2-methylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid" [P]. European Patent, EP 3231541 A1, 2019-02-16.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2010, 905, 3359-3368.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2019, 1356, (6), 9092-9115.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 7-Isopropyl-2-methylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid Using HRMS and NMR". Anal. Methods, 2023, 492, (11), 7535-7558.