Mueller T C, Kowalski A, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3285661 A1, 2015-07-20.
发明人何建平,杨光,李文辉. "Method for the Synthesis of 4,7-dimethoxybenzofuran-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115681672 B, 授权公告日 2023-03-11.
Schröder R, Nielsen H, Björnsson E. "A Process for Preparing High-Purity 4,7-dimethoxybenzofuran-5-carboxylic acid" [P]. European Patent, EP 3659399 A1, 2024-11-23.
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". Anal. Methods, 2017, 347, 3625-3654.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2011, 592, (12), 1747-1772.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 4,7-dimethoxybenzofuran-5-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2013, 2427, 854-872.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2025, 1456, (7), 1257-1269.