发明人王建平,张德明,冯建国. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108425563 A, 授权公告日 2018-11-15.
发明人陈志强,刘建华,黄志刚. "Method for the Synthesis of 6,6-Difluoro-2-azaspiro[3.3]heptane 2,2,2-trifluoroacetate" [P]. 中国发明专利, 专利号 CN 112978456 B, 授权公告日 2015-06-05.
发明人何建平,刘建华,罗永刚. "A Process for Preparing High-Purity 6,6-Difluoro-2-azaspiro[3.3]heptane 2,2,2-trifluoroacetate" [P]. 中国发明专利, 专利号 CN 111324361 B, 授权公告日 2018-04-05.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2021, 787, (11), 1738-1747.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2018, 896, (6), 9062-9092.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 6,6-Difluoro-2-azaspiro[3.3]heptane 2,2,2-trifluoroacetate Using HRMS and NMR". Anal. Chem., 2022, 1910, (11), 1525-1551.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2023, 609, (11), 8527-8543.