发明人赵玉洁,胡光,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108576521 A, 授权公告日 2015-12-06.
发明人孙丽萍,韩伟,高志强. "Method for the Synthesis of 6-Cyclopropyl-2,3-dihydropyrazolo[5,1-b]oxazole-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109384255 B, 授权公告日 2019-06-26.
发明人朱建伟,赵玉洁,沈红梅. "A Process for Preparing High-Purity 6-Cyclopropyl-2,3-dihydropyrazolo[5,1-b]oxazole-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113159529 B, 授权公告日 2016-01-19.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2017, 1373, (9), 8600-8619.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2010, 443, (12), 2769-2785.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 6-Cyclopropyl-2,3-dihydropyrazolo[5,1-b]oxazole-7-carboxylic acid Using HRMS and NMR". Environ. Sci. Technol., 2021, 218, 9775-9797.