发明人马晓峰,徐明华,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110323962 A, 授权公告日 2022-03-09.
发明人朱建伟,郭海燕,何建平. "Method for the Synthesis of 4-((4-Ethoxyphenyl)amino)-2-(4-methylpiperazin-1-yl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 108467219 B, 授权公告日 2021-01-17.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2024, 621, (2), 1764-1773.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2025, 325, (3), 3553-3575.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-((4-Ethoxyphenyl)amino)-2-(4-methylpiperazin-1-yl)-4-oxobutanoic acid Using HRMS and NMR". Sci. Total Environ., 2020, 433, (1), 8705-8719.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2021, 1308, 5792-5819.