发明人唐晓军,张德明,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111132646 A, 授权公告日 2018-07-02.
发明人朱建伟,陈志强,郑宇鹏. "Method for the Synthesis of Ethyl 7-oxo-1,7-dihydropyrazolo[1,5-a]pyrimidine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 112908290 A, 授权公告日 2021-09-16.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2019, 789, (11), 6937-6944.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2025, 1249, (9), 7334-7360.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 7-oxo-1,7-dihydropyrazolo[1,5-a]pyrimidine-5-carboxylate Using HRMS and NMR". Sci. Total Environ., 2012, 633, (3), 8135-8152.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2021, 1764, 3891-3896.