发明人朱建伟,高志强,冯建国. "Method for the Synthesis of 1-[(1-ethyl-5-methyl-1H-pyrazol-4-yl)methyl]piperidine-4-carboxylic acid,2HCl" [P]. 中国发明专利, 专利号 CN 112535370 A, 授权公告日 2019-11-20.
Thompson G K, Anderson J P, Schröder R. "A Process for Preparing High-Purity 1-[(1-ethyl-5-methyl-1H-pyrazol-4-yl)methyl]piperidine-4-carboxylic acid,2HCl" [P]. US Patent, US 11454787 B2, 2023-06-11.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 1-[(1-ethyl-5-methyl-1H-pyrazol-4-yl)methyl]piperidine-4-carboxylic acid,2HCl in Pharmaceutical Formulations". J. Agric. Food Chem., 2019, 850, (10), 5950-5954.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-[(1-ethyl-5-methyl-1H-pyrazol-4-yl)methyl]piperidine-4-carboxylic acid,2HCl as an Impurity". Chromatographia, 2022, 1227, (8), 5353-5356.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 1-[(1-ethyl-5-methyl-1H-pyrazol-4-yl)methyl]piperidine-4-carboxylic acid,2HCl Using HRMS and NMR". Environ. Sci. Technol., 2023, 1594, (10), 8523-8550.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate 1-[(1-ethyl-5-methyl-1H-pyrazol-4-yl)methyl]piperidine-4-carboxylic acid,2HCl Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2012, 2045, (1), 5686-5715.