发明人杨光,徐明华,高志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109760303 A, 授权公告日 2021-02-23.
Björnsson E, Lefèvre J P, Rossi M. "Method for the Synthesis of 2-(4-Chloro-2-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one" [P]. European Patent, EP 3144477 A1, 2021-11-10.
发明人徐明华,马晓峰,郑宇鹏. "A Process for Preparing High-Purity 2-(4-Chloro-2-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 117397852 B, 授权公告日 2017-06-01.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2010, 711, (12), 6940-6966.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2021, 1347, 1075-1101.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 2-(4-Chloro-2-fluorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one Using HRMS and NMR". Chromatographia, 2018, 523, (10), 3395-3416.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2013, 1706, (4), 1566-1588.