发明人张德明,赵玉洁,马晓峰. "Method for the Synthesis of tert-Butyl cis-6-oxo-7-oxa-5-azaspiro[3.4]octane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 114681916 A, 授权公告日 2022-10-27.
发明人沈红梅,高志强,冯建国. "A Process for Preparing High-Purity tert-Butyl cis-6-oxo-7-oxa-5-azaspiro[3.4]octane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 109421036 A, 授权公告日 2020-01-09.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2020, 1942, (2), 3666-3680.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2013, 298, (11), 7811-7840.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl cis-6-oxo-7-oxa-5-azaspiro[3.4]octane-2-carboxylate Using HRMS and NMR". Sci. Total Environ., 2015, 1779, 746-750.