发明人沈红梅,徐明华,唐晓军. "Method for the Synthesis of (4Z)-4-{[(4-chlorophenyl)amino]methylidene}-1-phenyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 115330086 A, 授权公告日 2021-05-03.
发明人李文辉,何建平,郭海燕. "A Process for Preparing High-Purity (4Z)-4-{[(4-chlorophenyl)amino]methylidene}-1-phenyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 110892150 B, 授权公告日 2023-11-21.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2010, 1079, (4), 7064-7071.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2015, 1901, (3), 3887-3899.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of (4Z)-4-{[(4-chlorophenyl)amino]methylidene}-1-phenyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one Using HRMS and NMR". J. Chromatogr. A, 2025, 1743, 1413-1422.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2020, 1085, (8), 4599-4603.