O'Brien P Q, Fischer A B, Roberts E F. "一种的合成方法" [P]. US Patent, US 9663495 B2, 2019-04-13.
发明人唐晓军,韩伟,郑宇鹏. "Method for the Synthesis of 4-(2-Hydroxyethyl)-5-methyl-1-[(4-methylphenyl)sulfonyl]-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 117304314 A, 授权公告日 2020-10-16.
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. Agric. Food Chem., 2020, 1701, (8), 4367-4392.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2013, 381, 4815-4825.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Hydroxyethyl)-5-methyl-1-[(4-methylphenyl)sulfonyl]-1,2-dihydro-3H-pyrazol-3-one Using HRMS and NMR". J. Pharm. Biomed. Anal., 2022, 917, (4), 2229-2238.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2012, 1527, (11), 4124-4133.