Björnsson E, Schröder R, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3663053 A1, 2015-10-09.
发明人周伟,林芳,罗永刚. "Method for the Synthesis of 2-Ethyl-5-(trifluoromethyl)-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 110888525 A, 授权公告日 2017-02-04.
Yamamoto T, Davis P L, Park J H. "A Process for Preparing High-Purity 2-Ethyl-5-(trifluoromethyl)-1,2-dihydro-3H-pyrazol-3-one" [P]. US Patent, US 9127975 B2, 2015-05-04.
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". Environ. Sci. Technol., 2022, 2401, (7), 1959-1981.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2010, 2423, (9), 6544-6556.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 2-Ethyl-5-(trifluoromethyl)-1,2-dihydro-3H-pyrazol-3-one Using HRMS and NMR". Biomed. Chromatogr., 2023, 494, (6), 1057-1071.