发明人孙丽萍,胡光,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117275653 A, 授权公告日 2018-08-10.
Stevens L M, Yamamoto T, Mueller T. "Method for the Synthesis of Methyl {(4E)-4-[(dimethylamino)methylene]-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl}acetate" [P]. US Patent, US 10049390 B2, 2019-08-03.
发明人周伟,冯建国,李文辉. "A Process for Preparing High-Purity Methyl {(4E)-4-[(dimethylamino)methylene]-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl}acetate" [P]. 中国发明专利, 专利号 CN 112550412 B, 授权公告日 2023-08-16.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2021, 119, (11), 4592-4620.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2016, 279, (1), 2898-2921.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Methyl {(4E)-4-[(dimethylamino)methylene]-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl}acetate Using HRMS and NMR". J. Nat. Prod., 2021, 1972, 3410-3430.