Yamamoto T, Schröder R, Johnson M A. "一种的合成方法" [P]. US Patent, US 11011433 B2, 2021-03-02.
发明人林芳,徐明华,唐晓军. "Method for the Synthesis of 2,3-Dihydropyrazolo[5,1-b]oxazol-7-amine" [P]. 中国发明专利, 专利号 CN 109920096 A, 授权公告日 2022-10-17.
O'Brien P Q, Schröder R, Brown S R. "A Process for Preparing High-Purity 2,3-Dihydropyrazolo[5,1-b]oxazol-7-amine" [P]. US Patent, US 10235116 B2, 2015-03-02.
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". Molecules, 2024, 1356, (12), 9561-9587.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2022, 2207, 3752-3763.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 2,3-Dihydropyrazolo[5,1-b]oxazol-7-amine Using HRMS and NMR". J. Pharm. Biomed. Anal., 2011, 2203, 5844-5862.