发明人林芳,韩伟,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109687094 A, 授权公告日 2020-10-08.
发明人李文辉,陈志强,朱建伟. "Method for the Synthesis of 2-(4-Methylbenzenesulfonyl)-N'-(2-oxo-2,3-dihydro-1H-indol-3-ylidene)acetohydrazide" [P]. 中国发明专利, 专利号 CN 112392690 B, 授权公告日 2017-08-09.
发明人韩伟,高志强,杨光. "A Process for Preparing High-Purity 2-(4-Methylbenzenesulfonyl)-N'-(2-oxo-2,3-dihydro-1H-indol-3-ylidene)acetohydrazide" [P]. 中国发明专利, 专利号 CN 115456108 A, 授权公告日 2019-12-27.
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". Talanta, 2017, 1117, 5303-5316.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2011, 1616, (9), 5489-5517.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 2-(4-Methylbenzenesulfonyl)-N'-(2-oxo-2,3-dihydro-1H-indol-3-ylidene)acetohydrazide Using HRMS and NMR". Anal. Methods, 2024, 449, (8), 9254-9268.