发明人胡光,韩伟,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112704433 A, 授权公告日 2015-05-11.
发明人高志强,沈红梅,何建平. "Method for the Synthesis of ethyl 5-fluoro-3-hydroxy-1H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110312790 B, 授权公告日 2025-03-10.
发明人李文辉,韩伟,孙丽萍. "A Process for Preparing High-Purity ethyl 5-fluoro-3-hydroxy-1H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110203896 B, 授权公告日 2021-12-05.
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". J. Chromatogr. A, 2013, 521, 4606-4624.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2018, 1395, (6), 4009-4020.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 5-fluoro-3-hydroxy-1H-indole-2-carboxylate Using HRMS and NMR". Molecules, 2016, 843, 77-80.