发明人冯建国,马晓峰,陈志强. "Method for the Synthesis of Methyl 5-amino-3-ethoxybenzofuran-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113322995 A, 授权公告日 2022-06-10.
发明人郭海燕,黄志刚,杨光. "A Process for Preparing High-Purity Methyl 5-amino-3-ethoxybenzofuran-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113541075 A, 授权公告日 2020-03-07.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 1038, 5645-5671.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2016, 842, (5), 5826-5846.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-amino-3-ethoxybenzofuran-2-carboxylate Using HRMS and NMR". J. Nat. Prod., 2019, 1811, 6669-6679.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2011, 2284, (5), 9517-9537.