发明人韩伟,徐明华,冯建国. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110224263 A, 授权公告日 2016-04-10.
Klinger H, Thompson G K, Chen K W. "Method for the Synthesis of Tert-butyl 9,9-difluoro-2,7-diazaspiro[4.5]Decane-2-carboxylate" [P]. US Patent, US 10538116 B2, 2019-04-07.
Mueller T, Kumar R, Williams B T. "A Process for Preparing High-Purity Tert-butyl 9,9-difluoro-2,7-diazaspiro[4.5]Decane-2-carboxylate" [P]. US Patent, US 10056525 B2, 2017-05-24.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2019, 586, 4841-4857.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2014, 164, 8957-8980.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 9,9-difluoro-2,7-diazaspiro[4.5]Decane-2-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2011, 779, 7749-7755.