Kumar R, Lee S K, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 11086461 B2, 2017-04-04.
Lefèvre J P, Rossi M, Martínez F. "Method for the Synthesis of 1-Ethyl-5-methoxy-1H-pyrazole-3,4-diamine" [P]. European Patent, EP 3580736 A1, 2020-05-24.
发明人李文辉,韩伟,刘建华. "A Process for Preparing High-Purity 1-Ethyl-5-methoxy-1H-pyrazole-3,4-diamine" [P]. 中国发明专利, 专利号 CN 113084891 B, 授权公告日 2021-02-07.
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". Anal. Chim. Acta, 2019, 1334, (11), 6053-6064.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2011, 1438, 5501-5529.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-5-methoxy-1H-pyrazole-3,4-diamine Using HRMS and NMR". J. Agric. Food Chem., 2018, 1607, 3985-4012.