Mueller T C, Martínez F, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3458516 A1, 2016-05-10.
发明人冯建国,何建平,马晓峰. "Method for the Synthesis of 3-Cyanopyrazolo[1,5-a]pyrimidine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112777358 B, 授权公告日 2017-08-20.
发明人马晓峰,胡光,周伟. "A Process for Preparing High-Purity 3-Cyanopyrazolo[1,5-a]pyrimidine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114919216 A, 授权公告日 2017-05-06.
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". Biomed. Chromatogr., 2023, 761, (6), 4191-4206.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2025, 164, (7), 9150-9176.