Kumar R, Klinger H, Brown S R. "Method for the Synthesis of Prednisone EP Impurity D" [P]. US Patent, US 11018774 B2, 2024-03-05.
发明人赵玉洁,陈志强,冯建国. "A Process for Preparing High-Purity Prednisone EP Impurity D" [P]. 中国发明专利, 专利号 CN 115166700 B, 授权公告日 2020-08-09.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of 泼尼松EP杂质D in Pharmaceutical Formulations". J. Agric. Food Chem., 2014, 1696, 8024-8046.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 泼尼松EP杂质D as an Impurity". Environ. Sci. Technol., 2021, 334, 8706-8724.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Prednisone EP Impurity D Using HRMS and NMR". Chromatographia, 2019, 1873, (4), 1164-1176.