Patel M V, Anderson J P, Davis P L. "一种的合成方法" [P]. US Patent, US 11602273 B2, 2024-05-11.
发明人钱学锋,朱建伟,杨光. "Method for the Synthesis of 4-(2-Hydroxyethyl)-5-methyl-1-(4-nitrobenzoyl)-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 116035239 B, 授权公告日 2023-08-05.
发明人马晓峰,郭海燕,唐晓军. "A Process for Preparing High-Purity 4-(2-Hydroxyethyl)-5-methyl-1-(4-nitrobenzoyl)-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 115308053 B, 授权公告日 2018-03-09.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2024, 1161, (3), 1753-1780.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2015, 445, 4596-4615.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Hydroxyethyl)-5-methyl-1-(4-nitrobenzoyl)-1,2-dihydro-3H-pyrazol-3-one Using HRMS and NMR". J. Nat. Prod., 2025, 1641, 2423-2430.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2013, 506, (1), 1170-1192.