Lee S K, Yamamoto T, Mueller T. "一种的合成方法" [P]. US Patent, US 9903826 B2, 2019-12-16.
Johansson L, Kowalski A, Björnsson E. "Method for the Synthesis of Ethyl 2-amino-6-cyano-1H-indole-3-carboxylate" [P]. European Patent, EP 3739445 A1, 2025-02-18.
发明人罗永刚,郑宇鹏,钱学锋. "A Process for Preparing High-Purity Ethyl 2-amino-6-cyano-1H-indole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116052873 A, 授权公告日 2020-12-21.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2010, 1737, 5276-5301.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2017, 2043, 8130-8151.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-amino-6-cyano-1H-indole-3-carboxylate Using HRMS and NMR". Anal. Chem., 2016, 2455, 5182-5195.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2020, 1857, 9759-9777.