发明人罗永刚,高志强,徐明华. "Method for the Synthesis of Tert-butyl 1-cyano-5-azaspiro[2.5]Octane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 109635293 A, 授权公告日 2019-04-26.
发明人李文辉,冯建国,钱学锋. "A Process for Preparing High-Purity Tert-butyl 1-cyano-5-azaspiro[2.5]Octane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 116266069 A, 授权公告日 2017-01-27.
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". Anal. Methods, 2016, 1201, 6822-6838.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2015, 1293, 1715-1725.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 1-cyano-5-azaspiro[2.5]Octane-5-carboxylate Using HRMS and NMR". J. Sep. Sci., 2018, 1911, (5), 4139-4167.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2018, 1255, 7586-7603.