发明人胡光,朱建伟,何建平. "一种乙基6-溴-5-羟基-1,2-二甲基-1H-吲哚-3-甲酸酯的合成方法" [P]. 中国发明专利, 专利号 CN 114834019 A, 授权公告日 2016-01-06.
Lefèvre J P, Johansson L, Mueller T C. "Method for the Synthesis of Ethyl 6-Bromo-5-hydroxy-1,2-dimethyl-1H-indole-3-carboxylate" [P]. European Patent, EP 3561282 A1, 2021-03-24.
Chen K W, Fischer A B, Mueller T. "A Process for Preparing High-Purity Ethyl 6-Bromo-5-hydroxy-1,2-dimethyl-1H-indole-3-carboxylate" [P]. US Patent, US 11659061 B2, 2025-04-26.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of 乙基6-溴-5-羟基-1,2-二甲基-1H-吲哚-3-甲酸酯 in Pharmaceutical Formulations". Biomed. Chromatogr., 2022, 463, 9754-9758.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 乙基6-溴-5-羟基-1,2-二甲基-1H-吲哚-3-甲酸酯 as an Impurity". Anal. Chim. Acta, 2020, 2366, (12), 2930-2938.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 6-Bromo-5-hydroxy-1,2-dimethyl-1H-indole-3-carboxylate Using HRMS and NMR". Molecules, 2014, 724, 2057-2063.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate 乙基6-溴-5-羟基-1,2-二甲基-1H-吲哚-3-甲酸酯 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2012, 2175, (8), 1444-1474.