发明人郭海燕,徐明华,钱学锋. "Method for the Synthesis of trans-2-(3,4-Difluorophenyl)cyclopropanecarboxylic Acid" [P]. 中国发明专利, 专利号 CN 108441672 A, 授权公告日 2024-03-05.
发明人李文辉,王建平,林芳. "A Process for Preparing High-Purity trans-2-(3,4-Difluorophenyl)cyclopropanecarboxylic Acid" [P]. 中国发明专利, 专利号 CN 111441336 A, 授权公告日 2018-09-19.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 反式-2-(3,4-二氟苯基)环丙烷甲酸 in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2013, 1525, (10), 4542-4569.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 反式-2-(3,4-二氟苯基)环丙烷甲酸 as an Impurity". Food Chem., 2013, 1373, (10), 1877-1889.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of trans-2-(3,4-Difluorophenyl)cyclopropanecarboxylic Acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2014, 2445, (4), 2995-3023.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate 反式-2-(3,4-二氟苯基)环丙烷甲酸 Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2015, 1328, 1113-1130.