Patel M V, Johnson M A, Roberts E F. "一种的合成方法" [P]. US Patent, US 11426000 B2, 2021-12-08.
Patel M V, Park J H, Brown S R. "Method for the Synthesis of 6-Methyl-4-(trifluoromethyl)-2,6-dihydropyrazolo[3,4-c]pyrazol-3-amine" [P]. US Patent, US 11614526 B2, 2017-02-24.
发明人张德明,刘建华,周伟. "A Process for Preparing High-Purity 6-Methyl-4-(trifluoromethyl)-2,6-dihydropyrazolo[3,4-c]pyrazol-3-amine" [P]. 中国发明专利, 专利号 CN 114813613 A, 授权公告日 2016-01-24.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2012, 2418, 7269-7287.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2016, 2366, 2573-2586.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 6-Methyl-4-(trifluoromethyl)-2,6-dihydropyrazolo[3,4-c]pyrazol-3-amine Using HRMS and NMR". Anal. Chim. Acta, 2019, 2234, 4235-4255.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2018, 1973, (10), 3112-3130.