Lee S K, Fischer A B, Chen K W. "Method for the Synthesis of Ethyl 3-amino-4-chloro-4,4-difluorobut-2-enoate" [P]. US Patent, US 10418962 B2, 2017-09-16.
发明人沈红梅,唐晓军,孙丽萍. "A Process for Preparing High-Purity Ethyl 3-amino-4-chloro-4,4-difluorobut-2-enoate" [P]. 中国发明专利, 专利号 CN 115143321 A, 授权公告日 2024-08-10.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2023, 867, (3), 6842-6859.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2012, 883, 8539-8547.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-amino-4-chloro-4,4-difluorobut-2-enoate Using HRMS and NMR". J. Sep. Sci., 2022, 1034, (11), 6211-6236.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2010, 348, (4), 829-838.