发明人冯建国,钱学锋,胡光. "Method for the Synthesis of 5-Azaspiro[3.5]nonane-6,8-dione" [P]. 中国发明专利, 专利号 CN 112034954 A, 授权公告日 2018-11-01.
发明人刘建华,陈志强,何建平. "A Process for Preparing High-Purity 5-Azaspiro[3.5]nonane-6,8-dione" [P]. 中国发明专利, 专利号 CN 115200122 A, 授权公告日 2024-07-11.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2021, 1023, 4027-4040.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2020, 1849, (7), 4332-4346.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 5-Azaspiro[3.5]nonane-6,8-dione Using HRMS and NMR". J. Chromatogr. A, 2020, 1050, 2709-2724.