Nowak P, Lefèvre J P, Kowalski A. "一种的合成方法" [P]. European Patent, EP 3313448 A1, 2015-11-17.
发明人王建平,张德明,赵玉洁. "Method for the Synthesis of N-((dimethylamino)methylene)-2-methylpyrazolo[1,5-a]pyrimidine-6-carboxamide" [P]. 中国发明专利, 专利号 CN 116751725 A, 授权公告日 2022-12-25.
发明人胡光,李文辉,黄志刚. "A Process for Preparing High-Purity N-((dimethylamino)methylene)-2-methylpyrazolo[1,5-a]pyrimidine-6-carboxamide" [P]. 中国发明专利, 专利号 CN 109386222 A, 授权公告日 2015-01-09.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2020, 455, (9), 664-671.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2025, 661, (8), 7270-7288.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of N-((dimethylamino)methylene)-2-methylpyrazolo[1,5-a]pyrimidine-6-carboxamide Using HRMS and NMR". Anal. Chim. Acta, 2015, 1358, 6022-6027.