发明人张德明,孙丽萍,高志强. "Method for the Synthesis of 4-Ethylisoxazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117747855 B, 授权公告日 2022-04-22.
发明人林芳,冯建国,高志强. "A Process for Preparing High-Purity 4-Ethylisoxazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113962503 A, 授权公告日 2022-09-06.
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". Chemosphere, 2018, 528, (12), 1989-1997.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2012, 1735, (3), 3901-3930.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethylisoxazole-5-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2010, 1696, 1005-1018.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2023, 1092, (11), 3908-3937.