Williams B T, Mueller T, O'Brien P Q. "Method for the Synthesis of (E)-Ethyl 4-bromo-4,4-difluorobut-2-enoate" [P]. US Patent, US 9355117 B2, 2020-10-19.
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". J. Agric. Food Chem., 2014, 1433, 6234-6248.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2020, 1502, (11), 5192-5211.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (E)-Ethyl 4-bromo-4,4-difluorobut-2-enoate Using HRMS and NMR". Environ. Sci. Technol., 2022, 1614, 2019-2033.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2013, 336, (12), 824-848.