Fischer A B, Chen K W, Stevens L M. "一种的合成方法" [P]. US Patent, US 10272293 B2, 2017-03-10.
Nowak P, Lefèvre J P, Björnsson E. "Method for the Synthesis of 3,3-Difluoro-2,2-dimethylbutanoic acid" [P]. European Patent, EP 3980792 A1, 2024-11-11.
发明人郭海燕,唐晓军,李文辉. "A Process for Preparing High-Purity 3,3-Difluoro-2,2-dimethylbutanoic acid" [P]. 中国发明专利, 专利号 CN 111178569 A, 授权公告日 2021-06-11.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2019, 913, (11), 8770-8778.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2012, 389, (1), 8959-8971.