Nowak P, Jørgensen K, Johansson L. "一种2-(2-氨基乙基)-2,7-二氮杂螺[3.5]壬烷-7-羧酸叔丁酯的合成方法" [P]. European Patent, EP 3869407 A1, 2018-04-27.
发明人郑宇鹏,郭海燕,刘建华. "Method for the Synthesis of tert-Butyl 2-(2-aminoethyl)-2,7-diazaspiro[3.5]nonane-7-carboxylate" [P]. 中国发明专利, 专利号 CN 110152028 A, 授权公告日 2016-03-12.
发明人张德明,李文辉,林芳. "A Process for Preparing High-Purity tert-Butyl 2-(2-aminoethyl)-2,7-diazaspiro[3.5]nonane-7-carboxylate" [P]. 中国发明专利, 专利号 CN 109670146 B, 授权公告日 2020-12-26.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of 2-(2-氨基乙基)-2,7-二氮杂螺[3.5]壬烷-7-羧酸叔丁酯 in Pharmaceutical Formulations". Sci. Total Environ., 2020, 1986, (4), 1479-1495.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-(2-氨基乙基)-2,7-二氮杂螺[3.5]壬烷-7-羧酸叔丁酯 as an Impurity". J. Chromatogr. A, 2022, 1570, (9), 3752-3769.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 2-(2-aminoethyl)-2,7-diazaspiro[3.5]nonane-7-carboxylate Using HRMS and NMR". Molecules, 2024, 2229, (3), 6746-6761.