Hughes D C, Davis P L, Brown S R. "Method for the Synthesis of Epalrestat Impurity 25" [P]. US Patent, US 11441517 B2, 2021-12-11.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 依帕司他杂质25 in Pharmaceutical Formulations". Biomed. Chromatogr., 2024, 370, (7), 962-989.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 依帕司他杂质25 as an Impurity". J. Sep. Sci., 2015, 299, (7), 431-445.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Epalrestat Impurity 25 Using HRMS and NMR". J. Agric. Food Chem., 2013, 1807, (2), 370-381.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate 依帕司他杂质25 Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2021, 501, (5), 9137-9161.