Stevens L M, Lee S K, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 11323677 B2, 2019-08-18.
发明人郭海燕,胡光,张德明. "Method for the Synthesis of N,5-dimethylpyrazine-2-carboxamide" [P]. 中国发明专利, 专利号 CN 117138967 B, 授权公告日 2022-03-14.
发明人林芳,孙丽萍,张德明. "A Process for Preparing High-Purity N,5-dimethylpyrazine-2-carboxamide" [P]. 中国发明专利, 专利号 CN 110881512 A, 授权公告日 2024-01-02.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2023, 1696, (12), 2709-2717.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2025, 2266, (8), 594-603.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of N,5-dimethylpyrazine-2-carboxamide Using HRMS and NMR". Molecules, 2018, 758, 325-352.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2021, 1144, 1761-1777.