发明人郑宇鹏,郭海燕,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108344639 A, 授权公告日 2016-06-10.
发明人朱建伟,高志强,黄志刚. "Method for the Synthesis of Ethyl 3-cyano-1H-indole-6-carboxylate" [P]. 中国发明专利, 专利号 CN 112022118 A, 授权公告日 2024-08-06.
Lee S K, O'Brien P Q, Yamamoto T. "A Process for Preparing High-Purity Ethyl 3-cyano-1H-indole-6-carboxylate" [P]. US Patent, US 10235146 B2, 2024-06-26.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2023, 1015, 2475-2496.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2020, 1580, 9882-9888.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-cyano-1H-indole-6-carboxylate Using HRMS and NMR". Anal. Chem., 2012, 826, (7), 5832-5845.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2017, 108, (5), 492-515.