发明人李文辉,郑宇鹏,钱学锋. "Method for the Synthesis of (S)-Benzyl 7-(methylamino)-5-azaspiro[2.4]heptane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 114889322 B, 授权公告日 2015-10-23.
发明人郑宇鹏,刘建华,唐晓军. "A Process for Preparing High-Purity (S)-Benzyl 7-(methylamino)-5-azaspiro[2.4]heptane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 111442268 B, 授权公告日 2017-12-15.
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". J. Pharm. Biomed. Anal., 2019, 133, 7298-7314.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2025, 1687, (9), 9240-9245.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of (S)-Benzyl 7-(methylamino)-5-azaspiro[2.4]heptane-5-carboxylate Using HRMS and NMR". Biomed. Chromatogr., 2018, 1357, 7550-7565.