发明人孙丽萍,郭海燕,李文辉. "Method for the Synthesis of tert-Butyl 7-amino-2-azaspiro[4.4]nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117276469 A, 授权公告日 2023-12-14.
发明人孙丽萍,胡光,郭海燕. "A Process for Preparing High-Purity tert-Butyl 7-amino-2-azaspiro[4.4]nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110136714 A, 授权公告日 2020-01-16.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2014, 400, (7), 3501-3513.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2015, 913, (8), 4160-4178.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 7-amino-2-azaspiro[4.4]nonane-2-carboxylate Using HRMS and NMR". Biomed. Chromatogr., 2017, 1897, (7), 8463-8484.