发明人杨光,钱学锋,马晓峰. "Method for the Synthesis of Tert-butyl 3,3-difluoro-1,8-diazaspiro[4.5]Decane-1-carboxylate" [P]. 中国发明专利, 专利号 CN 109239143 B, 授权公告日 2022-03-21.
Lefèvre J P, Rossi M, Johansson L. "A Process for Preparing High-Purity Tert-butyl 3,3-difluoro-1,8-diazaspiro[4.5]Decane-1-carboxylate" [P]. European Patent, EP 3205909 A1, 2020-09-15.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2024, 1706, (7), 7769-7789.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2011, 1495, 7300-7326.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 3,3-difluoro-1,8-diazaspiro[4.5]Decane-1-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2010, 936, (6), 1913-1929.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2018, 1136, (1), 722-750.