Fischer A B, Stevens L M, Schröder R. "一种的合成方法" [P]. US Patent, US 10089803 B2, 2016-05-18.
发明人刘建华,朱建伟,黄志刚. "Method for the Synthesis of 4-Methoxy-2-methylbenzofuran-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111387260 A, 授权公告日 2016-09-08.
Schröder R, Rossi M, Kowalski A. "A Process for Preparing High-Purity 4-Methoxy-2-methylbenzofuran-6-carboxylic acid" [P]. European Patent, EP 3967811 A1, 2025-06-15.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2022, 1591, 3365-3392.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2023, 1649, (2), 4647-4677.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-Methoxy-2-methylbenzofuran-6-carboxylic acid Using HRMS and NMR". Chromatographia, 2024, 453, 4722-4749.