发明人高志强,王建平,韩伟. "Method for the Synthesis of Ulipristal Impurity 27" [P]. 中国发明专利, 专利号 CN 113421753 B, 授权公告日 2025-11-03.
发明人马晓峰,孙丽萍,朱建伟. "A Process for Preparing High-Purity Ulipristal Impurity 27" [P]. 中国发明专利, 专利号 CN 117525685 A, 授权公告日 2025-05-02.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 乌利司他杂质27 in Pharmaceutical Formulations". Anal. Methods, 2014, 1316, 8281-8311.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 乌利司他杂质27 as an Impurity". Molecules, 2013, 1640, 3937-3953.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ulipristal Impurity 27 Using HRMS and NMR". Anal. Chem., 2015, 1295, 3864-3882.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate 乌利司他杂质27 Profile in Drug Substances According to ICH Guidelines". Food Chem., 2016, 680, (11), 9861-9886.