发明人张德明,李文辉,黄志刚. "Method for the Synthesis of (1R,4R)-4-amino-2,2-difluorocyclopentane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109365735 B, 授权公告日 2023-07-07.
Björnsson E, Nielsen H, Schröder R. "A Process for Preparing High-Purity (1R,4R)-4-amino-2,2-difluorocyclopentane-1-carboxylic acid" [P]. European Patent, EP 3331339 A1, 2021-02-02.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2020, 1580, (12), 5785-5814.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2014, 2394, (6), 8457-8472.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of (1R,4R)-4-amino-2,2-difluorocyclopentane-1-carboxylic acid Using HRMS and NMR". Chromatographia, 2023, 615, 9884-9907.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2018, 958, 8142-8154.