发明人赵玉洁,周伟,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110474191 A, 授权公告日 2022-09-01.
发明人陈志强,赵玉洁,钱学锋. "Method for the Synthesis of Tert-butyl 3-(3,3-dimethylureido)-8-azabicyclo[3.2.1]Octane-8-carboxylate" [P]. 中国发明专利, 专利号 CN 112453350 B, 授权公告日 2015-02-03.
发明人朱建伟,孙丽萍,王建平. "A Process for Preparing High-Purity Tert-butyl 3-(3,3-dimethylureido)-8-azabicyclo[3.2.1]Octane-8-carboxylate" [P]. 中国发明专利, 专利号 CN 114084076 B, 授权公告日 2015-12-13.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2018, 236, (7), 3088-3108.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2010, 2388, (3), 8164-8186.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 3-(3,3-dimethylureido)-8-azabicyclo[3.2.1]Octane-8-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2014, 2173, (7), 7419-7447.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2014, 1845, (8), 5417-5430.