Schröder R, Patel M V, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9289145 B2, 2023-06-26.
O'Brien P Q, Park J H, Klinger H. "Method for the Synthesis of 4-Amino-1-ethyl-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one" [P]. US Patent, US 9384162 B2, 2020-04-05.
发明人林芳,李文辉,黄志刚. "A Process for Preparing High-Purity 4-Amino-1-ethyl-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one" [P]. 中国发明专利, 专利号 CN 116648510 A, 授权公告日 2016-02-13.
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". Chemosphere, 2011, 1002, (4), 1129-1153.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2010, 763, (3), 12-41.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-1-ethyl-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one Using HRMS and NMR". Biomed. Chromatogr., 2013, 1395, (3), 1156-1173.