Martínez F, Jørgensen K, Johansson L. "一种的合成方法" [P]. European Patent, EP 3165678 A1, 2015-12-01.
Park J H, Thompson G K, Chen K W. "Method for the Synthesis of (1R,2R)-1-((tert-Butoxycarbonyl)amino)-2-(difluoromethyl)cyclopropane-1-carboxylic acid" [P]. US Patent, US 9053016 B2, 2015-07-12.
Patel M V, Anderson J P, Klinger H. "A Process for Preparing High-Purity (1R,2R)-1-((tert-Butoxycarbonyl)amino)-2-(difluoromethyl)cyclopropane-1-carboxylic acid" [P]. US Patent, US 10281175 B2, 2015-08-18.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2010, 2201, (11), 2666-2673.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2010, 1923, (8), 4241-4258.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of (1R,2R)-1-((tert-Butoxycarbonyl)amino)-2-(difluoromethyl)cyclopropane-1-carboxylic acid Using HRMS and NMR". Food Chem., 2023, 1540, 73-85.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2010, 939, (6), 5175-5190.