发明人马晓峰,何建平,郭海燕. "Method for the Synthesis of 1,1-Difluoro-5-azaspiro[2.5]octane" [P]. 中国发明专利, 专利号 CN 114272459 B, 授权公告日 2016-04-23.
发明人冯建国,朱建伟,马晓峰. "A Process for Preparing High-Purity 1,1-Difluoro-5-azaspiro[2.5]octane" [P]. 中国发明专利, 专利号 CN 110364364 B, 授权公告日 2024-08-01.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2019, 2110, 4828-4838.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2010, 998, (1), 4061-4087.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 1,1-Difluoro-5-azaspiro[2.5]octane Using HRMS and NMR". J. Agric. Food Chem., 2013, 992, 1651-1661.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2023, 420, (6), 7797-7815.