Williams B T, Mueller T, Patel M V. "一种丁酸氯倍他松EP杂质H的合成方法" [P]. US Patent, US 11004239 B2, 2023-03-23.
Yamamoto T, Schröder R, Kumar R. "Method for the Synthesis of Clobetasone Butyrate EP Impurity H" [P]. US Patent, US 11797104 B2, 2025-03-11.
Johnson M A, Brown S R, Park J H. "A Process for Preparing High-Purity Clobetasone Butyrate EP Impurity H" [P]. US Patent, US 10231139 B2, 2021-12-10.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of 丁酸氯倍他松EP杂质H in Pharmaceutical Formulations". J. Agric. Food Chem., 2023, 437, (11), 1560-1569.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 丁酸氯倍他松EP杂质H as an Impurity". Phytochemistry, 2014, 903, 2597-2601.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Clobetasone Butyrate EP Impurity H Using HRMS and NMR". Biomed. Chromatogr., 2017, 891, 6771-6795.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate 丁酸氯倍他松EP杂质H Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2015, 613, (3), 4703-4718.