Williams B T, Lee S K, Mueller T. "一种的合成方法" [P]. US Patent, US 9996541 B2, 2021-07-21.
发明人何建平,刘建华,钱学锋. "Method for the Synthesis of Ethyl 5-bromo-4-cyano-2-hydroxybenzoate" [P]. 中国发明专利, 专利号 CN 113547025 A, 授权公告日 2020-09-01.
发明人唐晓军,郭海燕,钱学锋. "A Process for Preparing High-Purity Ethyl 5-bromo-4-cyano-2-hydroxybenzoate" [P]. 中国发明专利, 专利号 CN 108652098 A, 授权公告日 2025-02-02.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2021, 796, 1035-1063.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2014, 1072, (4), 6324-6345.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-bromo-4-cyano-2-hydroxybenzoate Using HRMS and NMR". Molecules, 2017, 1740, 2287-2313.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2010, 1881, (5), 4741-4755.