发明人朱建伟,郭海燕,李文辉. "Method for the Synthesis of (Z)-Ethyl 4-(2-hydroxy-3-methoxybenzylidene)-2-methyl-5-oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrrole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 117388277 A, 授权公告日 2020-09-21.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2023, 2436, 440-469.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2022, 1120, 3923-3947.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of (Z)-Ethyl 4-(2-hydroxy-3-methoxybenzylidene)-2-methyl-5-oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrrole-3-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2015, 1047, (3), 8947-8961.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2011, 1777, 6950-6972.