发明人孙丽萍,郭海燕,何建平. "Method for the Synthesis of 4-Ethoxy-4-(ethyl-methyl-amino)-1,1,1-trifluoro-but-3-en-2-one" [P]. 中国发明专利, 专利号 CN 114670602 A, 授权公告日 2025-09-20.
发明人钱学锋,冯建国,郑宇鹏. "A Process for Preparing High-Purity 4-Ethoxy-4-(ethyl-methyl-amino)-1,1,1-trifluoro-but-3-en-2-one" [P]. 中国发明专利, 专利号 CN 109924253 B, 授权公告日 2022-10-21.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2015, 2448, (7), 363-389.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2010, 1989, 6331-6344.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethoxy-4-(ethyl-methyl-amino)-1,1,1-trifluoro-but-3-en-2-one Using HRMS and NMR". Chemosphere, 2024, 2318, (9), 5557-5586.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2023, 937, (8), 1834-1840.