发明人韩伟,郑宇鹏,冯建国. "Method for the Synthesis of 9-Benzyl-3,9-diazaspiro[5.5]undecane-2,4-dione" [P]. 中国发明专利, 专利号 CN 113632912 A, 授权公告日 2022-12-22.
发明人林芳,钱学锋,何建平. "A Process for Preparing High-Purity 9-Benzyl-3,9-diazaspiro[5.5]undecane-2,4-dione" [P]. 中国发明专利, 专利号 CN 117581819 A, 授权公告日 2024-01-04.
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". Talanta, 2025, 874, 3687-3705.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2015, 983, 8981-8991.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 9-Benzyl-3,9-diazaspiro[5.5]undecane-2,4-dione Using HRMS and NMR". Anal. Methods, 2016, 347, 7019-7046.