Fischer A B, Thompson G K, Johnson M A. "一种的合成方法" [P]. US Patent, US 10580939 B2, 2018-11-04.
Kowalski A, Lefèvre J P, Mueller T C. "Method for the Synthesis of 1-(2,2-Difluoroethyl)piperidine-2-carboxylic acid" [P]. European Patent, EP 3913061 A1, 2020-01-22.
发明人孙丽萍,唐晓军,马晓峰. "A Process for Preparing High-Purity 1-(2,2-Difluoroethyl)piperidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117074638 A, 授权公告日 2022-07-25.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2022, 2296, (9), 8940-8943.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2024, 2025, (12), 4691-4698.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2,2-Difluoroethyl)piperidine-2-carboxylic acid Using HRMS and NMR". Anal. Chem., 2015, 100, (3), 4360-4379.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2025, 1606, (12), 3967-3976.