发明人赵玉洁,刘建华,陈志强. "Method for the Synthesis of 2-Bromo-5-ethoxy-4-methoxybenzonitrile" [P]. 中国发明专利, 专利号 CN 110480896 A, 授权公告日 2023-08-11.
Lefèvre J P, Schröder R, Nielsen H. "A Process for Preparing High-Purity 2-Bromo-5-ethoxy-4-methoxybenzonitrile" [P]. European Patent, EP 3808742 A1, 2022-03-15.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2013, 1447, (10), 950-968.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2017, 1590, (7), 9430-9453.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 2-Bromo-5-ethoxy-4-methoxybenzonitrile Using HRMS and NMR". Anal. Chim. Acta, 2019, 1799, (11), 9269-9282.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2018, 1898, 592-619.