Fischer A B, Park J H, Davis P L. "Method for the Synthesis of 4-[(tert-Butoxycarbonyl)amino]piperidine-4-carboxylic acid ethyl ester" [P]. US Patent, US 9048172 B2, 2023-09-15.
Roberts E F, Yamamoto T, O'Brien P Q. "A Process for Preparing High-Purity 4-[(tert-Butoxycarbonyl)amino]piperidine-4-carboxylic acid ethyl ester" [P]. US Patent, US 10542106 B2, 2017-12-08.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2018, 122, (5), 9133-9138.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2014, 2069, (4), 8981-8995.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-[(tert-Butoxycarbonyl)amino]piperidine-4-carboxylic acid ethyl ester Using HRMS and NMR". Chemosphere, 2021, 1767, 5116-5141.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2016, 1965, 7811-7815.