发明人郑宇鹏,罗永刚,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109083704 A, 授权公告日 2022-09-23.
发明人孙丽萍,李文辉,罗永刚. "Method for the Synthesis of methyl 4,7-difluoro-1H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115621317 B, 授权公告日 2017-11-17.
发明人沈红梅,韩伟,周伟. "A Process for Preparing High-Purity methyl 4,7-difluoro-1H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115959800 A, 授权公告日 2015-10-24.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2018, 1241, (10), 6787-6798.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2015, 2141, 1712-1736.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of methyl 4,7-difluoro-1H-indole-2-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2019, 1050, (11), 485-503.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2016, 1388, (9), 2828-2852.