发明人韩伟,刘建华,周伟. "Method for the Synthesis of 6-(2-Hydroxyethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid hydrate" [P]. 中国发明专利, 专利号 CN 111608380 A, 授权公告日 2020-07-07.
发明人朱建伟,何建平,陈志强. "A Process for Preparing High-Purity 6-(2-Hydroxyethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid hydrate" [P]. 中国发明专利, 专利号 CN 111791000 A, 授权公告日 2024-12-14.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2012, 779, (7), 8624-8650.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2012, 632, (3), 7010-7019.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 6-(2-Hydroxyethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid hydrate Using HRMS and NMR". Anal. Methods, 2011, 2396, 6733-6747.