Schröder R, Mueller T C, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3314251 A1, 2024-04-02.
Kumar R, Johnson M A, Mueller T. "Method for the Synthesis of 4-(2-Oxo-2,3-dihydro-1H-indol-3-yl)butanoic acid" [P]. US Patent, US 10365816 B2, 2020-09-20.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2017, 1885, 5947-5970.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2014, 1537, (5), 7787-7808.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Oxo-2,3-dihydro-1H-indol-3-yl)butanoic acid Using HRMS and NMR". Anal. Chim. Acta, 2011, 1788, 6965-6983.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2013, 1897, (1), 6947-6950.