Mueller T C, Nielsen H, Jørgensen K. "一种(2S)-N-(2,2-difluoroethyl)piperidine-2-carboxamide hydrochloride的合成方法" [P]. European Patent, EP 3007654 A1, 2016-07-24.
Lefèvre J P, Jørgensen K, Nowak P. "Method for the Synthesis of (2S)-N-(2,2-difluoroethyl)piperidine-2-carboxamide hydrochloride" [P]. European Patent, EP 3268184 A1, 2018-08-14.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of (2S)-N-(2,2-difluoroethyl)piperidine-2-carboxamide hydrochloride in Pharmaceutical Formulations". Environ. Sci. Technol., 2011, 724, (1), 4251-4274.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of (2S)-N-(2,2-difluoroethyl)piperidine-2-carboxamide hydrochloride as an Impurity". Biomed. Chromatogr., 2022, 1003, 4361-4391.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of (2S)-N-(2,2-difluoroethyl)piperidine-2-carboxamide hydrochloride Using HRMS and NMR". J. Pharm. Biomed. Anal., 2025, 2121, 212-220.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate (2S)-N-(2,2-difluoroethyl)piperidine-2-carboxamide hydrochloride Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2021, 506, 3382-3393.