Thompson G K, Yamamoto T, Patel M V. "一种的合成方法" [P]. US Patent, US 9878827 B2, 2019-09-01.
发明人马晓峰,胡光,郑宇鹏. "Method for the Synthesis of (R)-Methyl 6-hydroxy-5-oxo-3,5-dihydro-2H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110588707 A, 授权公告日 2022-03-16.
发明人冯建国,郑宇鹏,沈红梅. "A Process for Preparing High-Purity (R)-Methyl 6-hydroxy-5-oxo-3,5-dihydro-2H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117611934 A, 授权公告日 2015-12-18.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2021, 2110, 1901-1921.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2013, 879, (4), 1197-1225.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of (R)-Methyl 6-hydroxy-5-oxo-3,5-dihydro-2H-indole-2-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2015, 1141, 2361-2384.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2019, 1187, 2874-2900.