发明人周伟,杨光,唐晓军. "Method for the Synthesis of Tert-butyl 1-methyl-2-oxo-6-azaspiro[3.4]Octane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 110219270 A, 授权公告日 2025-06-09.
发明人刘建华,唐晓军,郭海燕. "A Process for Preparing High-Purity Tert-butyl 1-methyl-2-oxo-6-azaspiro[3.4]Octane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 110166235 A, 授权公告日 2024-12-23.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2018, 2264, 9156-9181.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2014, 500, (11), 6433-6455.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 1-methyl-2-oxo-6-azaspiro[3.4]Octane-6-carboxylate Using HRMS and NMR". Chromatographia, 2018, 1296, (9), 2594-2623.