发明人孙丽萍,沈红梅,冯建国. "Method for the Synthesis of 5-Ethyl-1,4-dimethyl-2-phenyl-1H-pyrazol-3(2H)-imine" [P]. 中国发明专利, 专利号 CN 111454529 B, 授权公告日 2015-08-21.
发明人张德明,周伟,孙丽萍. "A Process for Preparing High-Purity 5-Ethyl-1,4-dimethyl-2-phenyl-1H-pyrazol-3(2H)-imine" [P]. 中国发明专利, 专利号 CN 116996848 A, 授权公告日 2019-07-06.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2018, 346, (10), 7511-7520.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2010, 551, 1542-1550.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 5-Ethyl-1,4-dimethyl-2-phenyl-1H-pyrazol-3(2H)-imine Using HRMS and NMR". Molecules, 2012, 1848, 1981-1988.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2012, 2412, (4), 3428-3454.