发明人徐明华,刘建华,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109774518 A, 授权公告日 2020-06-27.
发明人郑宇鹏,朱建伟,郭海燕. "Method for the Synthesis of Methyl 7-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 116470855 B, 授权公告日 2015-05-06.
发明人唐晓军,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity Methyl 7-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 110174880 A, 授权公告日 2025-10-05.
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". J. Pharm. Biomed. Anal., 2024, 414, 9845-9862.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2025, 1992, (2), 2654-2676.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 7-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2010, 439, (2), 2094-2113.