发明人韩伟,徐明华,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108024336 A, 授权公告日 2016-12-02.
Kumar R, Stevens L M, Klinger H. "Method for the Synthesis of Ethyl 3-(5-methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidin-6-yl)propanoate" [P]. US Patent, US 11403996 B2, 2018-08-19.
发明人冯建国,徐明华,郭海燕. "A Process for Preparing High-Purity Ethyl 3-(5-methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidin-6-yl)propanoate" [P]. 中国发明专利, 专利号 CN 111266235 A, 授权公告日 2015-06-01.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2023, 2051, 6957-6965.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2017, 1573, 7910-7937.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-(5-methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidin-6-yl)propanoate Using HRMS and NMR". Phytochemistry, 2016, 2138, 1072-1076.