发明人林芳,周伟,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117162742 A, 授权公告日 2023-10-26.
发明人何建平,黄志刚,孙丽萍. "Method for the Synthesis of 2-(Methoxycarbonyl)-7-methylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116493107 A, 授权公告日 2015-01-06.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2020, 809, (4), 5654-5668.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2019, 518, (1), 7887-7905.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Methoxycarbonyl)-7-methylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid Using HRMS and NMR". Molecules, 2012, 1819, (12), 1965-1992.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2016, 825, 3261-3291.