发明人杨光,李文辉,王建平. "Method for the Synthesis of Methyl 4-bromo-7-chloro-1h-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112902092 B, 授权公告日 2019-09-25.
发明人刘建华,罗永刚,张德明. "A Process for Preparing High-Purity Methyl 4-bromo-7-chloro-1h-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112781066 B, 授权公告日 2017-03-15.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2023, 1351, (8), 4168-4177.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2014, 1494, (8), 9552-9556.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-bromo-7-chloro-1h-indole-2-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 482, 3835-3862.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2022, 1800, 6064-6071.