Hughes D C, Williams B T, Lee S K. "一种的合成方法" [P]. US Patent, US 9231981 B2, 2020-04-10.
发明人何建平,黄志刚,马晓峰. "Method for the Synthesis of 5,6-Dimethoxyindolin-2-one" [P]. 中国发明专利, 专利号 CN 110252423 A, 授权公告日 2019-03-13.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2015, 1953, (12), 5043-5058.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2015, 410, (11), 2850-2862.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 5,6-Dimethoxyindolin-2-one Using HRMS and NMR". Chromatographia, 2014, 1033, (7), 6614-6618.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2015, 1483, (6), 9619-9645.