发明人胡光,沈红梅,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116618914 A, 授权公告日 2020-03-01.
O'Brien P Q, Schröder R, Mueller T. "Method for the Synthesis of (4Z)-3-tert-Butyl-4-{[5-nitro-2-(pyridin-2-ylsulfanyl)phenyl]methylidene}-1-phenyl-4,5-dihydro-1H-pyrazol-5-one" [P]. US Patent, US 9752604 B2, 2016-07-24.
发明人陈志强,唐晓军,周伟. "A Process for Preparing High-Purity (4Z)-3-tert-Butyl-4-{[5-nitro-2-(pyridin-2-ylsulfanyl)phenyl]methylidene}-1-phenyl-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 113246923 B, 授权公告日 2025-11-19.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2022, 2047, (4), 9111-9118.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2011, 1206, (10), 7457-7481.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of (4Z)-3-tert-Butyl-4-{[5-nitro-2-(pyridin-2-ylsulfanyl)phenyl]methylidene}-1-phenyl-4,5-dihydro-1H-pyrazol-5-one Using HRMS and NMR". J. Chromatogr. A, 2025, 2380, 2790-2814.