发明人孙丽萍,钱学锋,周伟. "Method for the Synthesis of 4,7-Dichloro-1H-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111687241 B, 授权公告日 2022-01-24.
发明人马晓峰,刘建华,陈志强. "A Process for Preparing High-Purity 4,7-Dichloro-1H-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111270933 A, 授权公告日 2016-10-21.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2022, 578, (5), 6543-6564.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2011, 2419, 1610-1626.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 4,7-Dichloro-1H-indole-2-carboxylic acid Using HRMS and NMR". J. Sep. Sci., 2011, 868, 1690-1701.