Johansson L, Nowak P, Nielsen H. "Method for the Synthesis of 1,5-Dimethyl-2,4-diphenyl-1H-pyrazol-3(2H)-one" [P]. European Patent, EP 3188928 A1, 2016-04-10.
发明人赵玉洁,孙丽萍,沈红梅. "A Process for Preparing High-Purity 1,5-Dimethyl-2,4-diphenyl-1H-pyrazol-3(2H)-one" [P]. 中国发明专利, 专利号 CN 108073416 B, 授权公告日 2023-09-15.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2024, 1289, (2), 3611-3639.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2018, 1056, (11), 4651-4676.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 1,5-Dimethyl-2,4-diphenyl-1H-pyrazol-3(2H)-one Using HRMS and NMR". Anal. Chim. Acta, 2010, 2123, (10), 9305-9334.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2013, 2145, 3727-3734.