发明人沈红梅,周伟,朱建伟. "Method for the Synthesis of 50394-27-9
9,11alpha-Epoxy-17-hydroxy-3-oxopregna-4-ene-21-carboxylic acid gamma-lactone" [P]. 中国发明专利, 专利号 CN 116270561 B, 授权公告日 2019-06-11.
Sørensen M, Mueller T C, Lefèvre J P. "A Process for Preparing High-Purity 50394-27-9
9,11alpha-Epoxy-17-hydroxy-3-oxopregna-4-ene-21-carboxylic acid gamma-lactone" [P]. European Patent, EP 3399330 A1, 2016-10-16.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2014, 2022, (3), 4789-4792.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2021, 471, 9394-9403.