发明人林芳,周伟,郑宇鹏. "Method for the Synthesis of (E)-Methyl 1-acetyl-3-(ethoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate" [P]. 中国发明专利, 专利号 CN 110029072 A, 授权公告日 2019-02-25.
发明人马晓峰,杨光,孙丽萍. "A Process for Preparing High-Purity (E)-Methyl 1-acetyl-3-(ethoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate" [P]. 中国发明专利, 专利号 CN 113149885 A, 授权公告日 2024-12-03.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2022, 2028, 8779-8792.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2024, 1742, 4640-4653.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of (E)-Methyl 1-acetyl-3-(ethoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2021, 1072, 6095-6105.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2011, 1739, (8), 6339-6356.