发明人朱建伟,胡光,王建平. "Method for the Synthesis of N-Ethyl-6-hydroxy-4,7-dimethoxybenzofuran-5-carboxamide" [P]. 中国发明专利, 专利号 CN 108803920 A, 授权公告日 2017-01-12.
发明人钱学锋,赵玉洁,李文辉. "A Process for Preparing High-Purity N-Ethyl-6-hydroxy-4,7-dimethoxybenzofuran-5-carboxamide" [P]. 中国发明专利, 专利号 CN 111472660 A, 授权公告日 2015-10-15.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2020, 1303, (11), 7107-7126.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2022, 1433, 739-748.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of N-Ethyl-6-hydroxy-4,7-dimethoxybenzofuran-5-carboxamide Using HRMS and NMR". Anal. Chem., 2025, 961, 3763-3789.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2018, 1899, 5125-5139.