发明人孙丽萍,赵玉洁,朱建伟. "Method for the Synthesis of 4-(2-Nitrobenzyl)-1,3-diphenyl-1H-pyrazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 111780563 B, 授权公告日 2018-03-16.
Lee S K, Park J H, Brown S R. "A Process for Preparing High-Purity 4-(2-Nitrobenzyl)-1,3-diphenyl-1H-pyrazol-5(4H)-one" [P]. US Patent, US 10623841 B2, 2023-09-16.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2012, 852, 4975-4989.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2015, 1544, (3), 9061-9079.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Nitrobenzyl)-1,3-diphenyl-1H-pyrazol-5(4H)-one Using HRMS and NMR". Biomed. Chromatogr., 2011, 1528, 1367-1380.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2016, 2022, (12), 8276-8291.