Williams B T, Patel M V, Fischer A B. "一种的合成方法" [P]. US Patent, US 11166589 B2, 2017-12-26.
发明人韩伟,李文辉,赵玉洁. "Method for the Synthesis of 4-Ethoxy-3-methoxybenzonitrile, 97%" [P]. 中国发明专利, 专利号 CN 113231333 A, 授权公告日 2025-12-19.
发明人沈红梅,钱学锋,胡光. "A Process for Preparing High-Purity 4-Ethoxy-3-methoxybenzonitrile, 97%" [P]. 中国发明专利, 专利号 CN 115803647 A, 授权公告日 2021-03-03.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2010, 599, 6491-6501.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2017, 1307, 2548-2578.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethoxy-3-methoxybenzonitrile, 97% Using HRMS and NMR". Phytochemistry, 2022, 705, (10), 1413-1431.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2013, 1446, 6749-6752.