Nielsen H, Björnsson E, Sørensen M. "Method for the Synthesis of 1-Acetyl-4-ethylpiperidine-4-carboxylic acid" [P]. European Patent, EP 3004209 A1, 2019-09-26.
Johnson M A, Fischer A B, Stevens L M. "A Process for Preparing High-Purity 1-Acetyl-4-ethylpiperidine-4-carboxylic acid" [P]. US Patent, US 9530161 B2, 2021-12-03.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2016, 1274, 9407-9425.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2012, 1801, (7), 4289-4302.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 1-Acetyl-4-ethylpiperidine-4-carboxylic acid Using HRMS and NMR". Talanta, 2011, 2305, (8), 7124-7151.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2024, 2475, (4), 3298-3324.