Anderson J P, Hughes D C, Lee S K. "一种的合成方法" [P]. US Patent, US 11743192 B2, 2017-06-01.
发明人罗永刚,徐明华,钱学锋. "Method for the Synthesis of Ethyl(S)-6-methoxyindoline-2-carboxylatehydrochloride" [P]. 中国发明专利, 专利号 CN 109808764 A, 授权公告日 2024-03-23.
发明人马晓峰,冯建国,林芳. "A Process for Preparing High-Purity Ethyl(S)-6-methoxyindoline-2-carboxylatehydrochloride" [P]. 中国发明专利, 专利号 CN 114438711 B, 授权公告日 2022-08-02.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2010, 1741, (9), 1066-1086.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2014, 433, 5518-5530.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl(S)-6-methoxyindoline-2-carboxylatehydrochloride Using HRMS and NMR". Chromatographia, 2022, 1413, (10), 2638-2667.