发明人林芳,冯建国,高志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114949663 A, 授权公告日 2022-05-18.
发明人刘建华,唐晓军,孙丽萍. "Method for the Synthesis of ethyl 3-cyano-7-cyclopropylpyraZolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 117338153 B, 授权公告日 2016-12-26.
发明人刘建华,杨光,李文辉. "A Process for Preparing High-Purity ethyl 3-cyano-7-cyclopropylpyraZolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 109182323 B, 授权公告日 2021-05-27.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2013, 1465, (3), 4846-4868.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2019, 1144, (4), 5181-5201.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 3-cyano-7-cyclopropylpyraZolo[1,5-a]pyrimidine-6-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2019, 1812, 2891-2897.