发明人沈红梅,郭海燕,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109358077 A, 授权公告日 2020-10-04.
发明人黄志刚,孙丽萍,韩伟. "Method for the Synthesis of Ethyl 7-iodo-2,3-dihydropyrazolo[5,1-b]oxazole-6-carboxylate" [P]. 中国发明专利, 专利号 CN 116306869 B, 授权公告日 2020-12-07.
发明人林芳,沈红梅,张德明. "A Process for Preparing High-Purity Ethyl 7-iodo-2,3-dihydropyrazolo[5,1-b]oxazole-6-carboxylate" [P]. 中国发明专利, 专利号 CN 109176912 B, 授权公告日 2025-03-11.
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". J. Agric. Food Chem., 2025, 798, (5), 1832-1837.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2022, 309, 9924-9928.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 7-iodo-2,3-dihydropyrazolo[5,1-b]oxazole-6-carboxylate Using HRMS and NMR". J. Sep. Sci., 2024, 2386, (3), 2632-2648.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2025, 2086, 1721-1748.