发明人郑宇鹏,沈红梅,杨光. "Method for the Synthesis of 5-Chloro-4-nitrobenzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116202422 B, 授权公告日 2023-01-05.
发明人沈红梅,高志强,冯建国. "A Process for Preparing High-Purity 5-Chloro-4-nitrobenzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110733037 A, 授权公告日 2016-08-14.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2011, 142, 895-898.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2017, 2072, (3), 1610-1639.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 5-Chloro-4-nitrobenzofuran-2-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2011, 1299, (5), 9418-9432.