发明人高志强,胡光,钱学锋. "Method for the Synthesis of Ursodeoxycholic Acid Impurity 68" [P]. 中国发明专利, 专利号 CN 116842152 B, 授权公告日 2023-09-05.
Fischer A B, Patel M V, O'Brien P Q. "A Process for Preparing High-Purity Ursodeoxycholic Acid Impurity 68" [P]. US Patent, US 10218165 B2, 2016-08-19.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 熊去氧胆酸杂质68 in Pharmaceutical Formulations". Chromatographia, 2022, 2146, (5), 4600-4610.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 熊去氧胆酸杂质68 as an Impurity". Anal. Chim. Acta, 2023, 912, 9154-9166.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of Ursodeoxycholic Acid Impurity 68 Using HRMS and NMR". Phytochemistry, 2012, 604, (5), 2772-2779.