Sørensen M, Nielsen H, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3480094 A1, 2025-02-24.
发明人杨光,沈红梅,王建平. "Method for the Synthesis of 1,1-Difluoro-5-methyl-6-azaspiro[2.5]Octane" [P]. 中国发明专利, 专利号 CN 117631294 A, 授权公告日 2024-06-13.
发明人郭海燕,徐明华,刘建华. "A Process for Preparing High-Purity 1,1-Difluoro-5-methyl-6-azaspiro[2.5]Octane" [P]. 中国发明专利, 专利号 CN 116184388 A, 授权公告日 2017-04-09.
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". Sci. Total Environ., 2014, 88, (4), 2920-2932.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2018, 344, (12), 8913-8928.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 1,1-Difluoro-5-methyl-6-azaspiro[2.5]Octane Using HRMS and NMR". Talanta, 2010, 1750, (1), 866-878.