Kumar R, O'Brien P Q, Brown S R. "一种的合成方法" [P]. US Patent, US 11971419 B2, 2018-01-10.
发明人黄志刚,李文辉,马晓峰. "Method for the Synthesis of Tert-butyl 8,8-dimethyl-5-oxo-1,4,9-triazaspiro[5.5]Undecane-1-carboxylate" [P]. 中国发明专利, 专利号 CN 109109805 A, 授权公告日 2020-03-01.
Lefèvre J P, Johansson L, Sørensen M. "A Process for Preparing High-Purity Tert-butyl 8,8-dimethyl-5-oxo-1,4,9-triazaspiro[5.5]Undecane-1-carboxylate" [P]. European Patent, EP 3282936 A1, 2024-08-26.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2013, 117, (11), 7338-7364.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2020, 808, 5060-5064.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 8,8-dimethyl-5-oxo-1,4,9-triazaspiro[5.5]Undecane-1-carboxylate Using HRMS and NMR". Anal. Chem., 2022, 1469, (7), 2389-2418.