发明人王建平,刘建华,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114267021 A, 授权公告日 2016-01-21.
发明人刘建华,唐晓军,朱建伟. "Method for the Synthesis of Methyl 6-((tert-butoxycarbonyl)amino)-2-azaspiro[3.3]Heptane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 108488180 A, 授权公告日 2018-05-15.
发明人郑宇鹏,胡光,韩伟. "A Process for Preparing High-Purity Methyl 6-((tert-butoxycarbonyl)amino)-2-azaspiro[3.3]Heptane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 109356064 B, 授权公告日 2017-01-06.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2019, 187, 4111-4127.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2019, 414, 1712-1718.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 6-((tert-butoxycarbonyl)amino)-2-azaspiro[3.3]Heptane-5-carboxylate Using HRMS and NMR". Molecules, 2010, 902, 8229-8251.