发明人沈红梅,孙丽萍,周伟. "Method for the Synthesis of Ethyl4,5-difluoro-2-methyl-1H-indole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109779593 B, 授权公告日 2016-11-19.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2020, 1588, (9), 6012-6033.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2020, 2074, (8), 8597-8619.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl4,5-difluoro-2-methyl-1H-indole-3-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2012, 1867, (8), 2170-2185.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2021, 175, (2), 1931-1954.