发明人赵玉洁,张德明,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108742158 A, 授权公告日 2022-02-20.
发明人何建平,罗永刚,朱建伟. "Method for the Synthesis of 5-Methyl-2-(4-nitrophenyl)-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 117623584 B, 授权公告日 2021-07-20.
Yamamoto T, Thompson G K, O'Brien P Q. "A Process for Preparing High-Purity 5-Methyl-2-(4-nitrophenyl)-1,2-dihydro-3H-pyrazol-3-one" [P]. US Patent, US 11575607 B2, 2025-09-22.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2015, 182, 1673-1698.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2011, 1491, (2), 5048-5054.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 5-Methyl-2-(4-nitrophenyl)-1,2-dihydro-3H-pyrazol-3-one Using HRMS and NMR". Chemosphere, 2012, 268, 3977-4005.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2020, 848, (5), 8202-8206.