发明人韩伟,胡光,李文辉. "Method for the Synthesis of Tetrahydro-α-hydroxy-α-methyl-2-(1-methylethoxy)-5-oxo-2H-pyran-4-acetic acid Methyl Ester" [P]. 中国发明专利, 专利号 CN 110122207 B, 授权公告日 2022-12-11.
发明人孙丽萍,沈红梅,韩伟. "A Process for Preparing High-Purity Tetrahydro-α-hydroxy-α-methyl-2-(1-methylethoxy)-5-oxo-2H-pyran-4-acetic acid Methyl Ester" [P]. 中国发明专利, 专利号 CN 110549021 A, 授权公告日 2020-11-26.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2017, 2094, 5142-5150.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2019, 285, 9608-9637.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Tetrahydro-α-hydroxy-α-methyl-2-(1-methylethoxy)-5-oxo-2H-pyran-4-acetic acid Methyl Ester Using HRMS and NMR". Sci. Total Environ., 2025, 1831, (7), 6381-6392.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2022, 1575, 1347-1375.