发明人张德明,高志强,赵玉洁. "Method for the Synthesis of (2E)-[4-(Acetylthio)-1-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-3-piperidinylidene]acetic Acid Ethyl Ester (Mixture of Diastereomers)DISCONTINUED
204206-08-6" [P]. 中国发明专利, 专利号 CN 114689144 B, 授权公告日 2018-09-09.
发明人黄志刚,周伟,郭海燕. "A Process for Preparing High-Purity (2E)-[4-(Acetylthio)-1-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-3-piperidinylidene]acetic Acid Ethyl Ester (Mixture of Diastereomers)DISCONTINUED
204206-08-6" [P]. 中国发明专利, 专利号 CN 111281792 B, 授权公告日 2015-04-11.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2021, 1471, (12), 7481-7508.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2014, 1519, (6), 7423-7438.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of (2E)-[4-(Acetylthio)-1-[2-cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl]-3-piperidinylidene]acetic Acid Ethyl Ester (Mixture of Diastereomers)DISCONTINUED
204206-08-6 Using HRMS and NMR". Anal. Methods, 2012, 1691, (11), 1992-1998.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2023, 2164, (3), 7778-7792.