发明人胡光,何建平,孙丽萍. "Method for the Synthesis of 11β-Hydroxy-16α-methyl-17,20:20,21-bis(methylenedioxy)-pregn-4-en-3-one" [P]. 中国发明专利, 专利号 CN 111848903 A, 授权公告日 2018-04-19.
发明人罗永刚,韩伟,胡光. "A Process for Preparing High-Purity 11β-Hydroxy-16α-methyl-17,20:20,21-bis(methylenedioxy)-pregn-4-en-3-one" [P]. 中国发明专利, 专利号 CN 113626821 A, 授权公告日 2020-02-21.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2014, 2437, (7), 9979-10006.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2017, 928, 1931-1949.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 11β-Hydroxy-16α-methyl-17,20:20,21-bis(methylenedioxy)-pregn-4-en-3-one Using HRMS and NMR". Environ. Sci. Technol., 2022, 387, (5), 945-962.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2016, 2431, (3), 2142-2167.