Kumar R, O'Brien P Q, Patel M V. "一种的合成方法" [P]. US Patent, US 9962197 B2, 2025-09-17.
发明人张德明,唐晓军,李文辉. "Method for the Synthesis of 2-(2-(4-Ethylpiperazin-1-yl)-2-oxoethyl)-1,4-dimethyl-1H-pyrrole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115868191 A, 授权公告日 2025-06-04.
发明人陈志强,郭海燕,马晓峰. "A Process for Preparing High-Purity 2-(2-(4-Ethylpiperazin-1-yl)-2-oxoethyl)-1,4-dimethyl-1H-pyrrole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115707776 A, 授权公告日 2015-01-11.
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. Sep. Sci., 2011, 1573, 217-235.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2022, 204, (8), 1060-1075.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 2-(2-(4-Ethylpiperazin-1-yl)-2-oxoethyl)-1,4-dimethyl-1H-pyrrole-3-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2019, 1647, (1), 2758-2787.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2024, 1455, (4), 4423-4441.