发明人胡光,罗永刚,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114006393 A, 授权公告日 2015-10-25.
发明人钱学锋,李文辉,郭海燕. "Method for the Synthesis of 7-Ethoxybenzofuran-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 111828253 B, 授权公告日 2020-10-03.
Davis P L, Thompson G K, Roberts E F. "A Process for Preparing High-Purity 7-Ethoxybenzofuran-2-carbohydrazide" [P]. US Patent, US 11698880 B2, 2025-12-11.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2016, 320, 3923-3938.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2019, 2431, (10), 2039-2061.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 7-Ethoxybenzofuran-2-carbohydrazide Using HRMS and NMR". Anal. Methods, 2017, 1358, (7), 7190-7210.