Björnsson E, Rossi M, Nielsen H. "Method for the Synthesis of Tert-butyl 4-(3-isopropylureido)piperidine-1-carboxylate" [P]. European Patent, EP 3956278 A1, 2021-08-20.
发明人胡光,刘建华,周伟. "A Process for Preparing High-Purity Tert-butyl 4-(3-isopropylureido)piperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 109169194 A, 授权公告日 2020-11-22.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2019, 2295, (10), 5942-5954.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2011, 1851, (5), 6780-6800.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 4-(3-isopropylureido)piperidine-1-carboxylate Using HRMS and NMR". Chromatographia, 2011, 2276, 1837-1844.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2011, 967, (5), 3240-3245.