Nowak P, Mueller T C, Rossi M. "一种的合成方法" [P]. European Patent, EP 3503771 A1, 2020-05-27.
Schröder R, Hughes D C, Mueller T. "Method for the Synthesis of Ethyl 6,7-dichloro-1H-indole-2-carboxylate" [P]. US Patent, US 10281116 B2, 2017-09-15.
发明人郑宇鹏,韩伟,杨光. "A Process for Preparing High-Purity Ethyl 6,7-dichloro-1H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111470554 A, 授权公告日 2015-02-25.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2016, 2208, 344-349.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2023, 635, 8059-8064.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 6,7-dichloro-1H-indole-2-carboxylate Using HRMS and NMR". Anal. Methods, 2010, 922, (2), 7497-7501.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2023, 1236, 3188-3208.