Chen K W, Stevens L M, O'Brien P Q. "一种共轭雌激素EP杂质C的合成方法" [P]. US Patent, US 9352507 B2, 2015-01-20.
发明人冯建国,唐晓军,高志强. "Method for the Synthesis of Conjugated Estrogens EP Impurity C" [P]. 中国发明专利, 专利号 CN 113682517 B, 授权公告日 2019-08-04.
发明人胡光,罗永刚,韩伟. "A Process for Preparing High-Purity Conjugated Estrogens EP Impurity C" [P]. 中国发明专利, 专利号 CN 111020309 A, 授权公告日 2024-06-01.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 共轭雌激素EP杂质C in Pharmaceutical Formulations". Environ. Sci. Technol., 2012, 2213, (3), 3436-3450.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 共轭雌激素EP杂质C as an Impurity". Sci. Total Environ., 2024, 429, (11), 9527-9539.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Conjugated Estrogens EP Impurity C Using HRMS and NMR". Anal. Methods, 2021, 1676, (11), 4344-4370.