发明人冯建国,高志强,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117364644 A, 授权公告日 2017-02-10.
发明人周伟,黄志刚,郭海燕. "Method for the Synthesis of 4-(5-(3-Nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 109295104 A, 授权公告日 2024-11-17.
发明人周伟,陈志强,王建平. "A Process for Preparing High-Purity 4-(5-(3-Nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 114824107 B, 授权公告日 2025-06-19.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2017, 914, 8378-8390.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2021, 509, (5), 1066-1069.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-(5-(3-Nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid Using HRMS and NMR". Anal. Chim. Acta, 2013, 2463, (9), 4243-4264.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2010, 2438, 5381-5394.