Fischer A B, Thompson G K, Williams B T. "一种的合成方法" [P]. US Patent, US 10930157 B2, 2015-12-08.
Mueller T, Hughes D C, Kumar R. "Method for the Synthesis of 3-Ethyl-1-(2-fluorophenyl)-4,5-dihydro-1H-pyrazol-5-one" [P]. US Patent, US 11023973 B2, 2017-03-22.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2010, 791, (9), 2960-2970.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2020, 1883, 4616-4637.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-1-(2-fluorophenyl)-4,5-dihydro-1H-pyrazol-5-one Using HRMS and NMR". Sci. Total Environ., 2023, 523, (4), 698-727.