发明人孙丽萍,朱建伟,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109223347 A, 授权公告日 2024-06-28.
Jørgensen K, Schröder R, Sørensen M. "Method for the Synthesis of 3-(Methylamino)pyrazine-2-carboxamide" [P]. European Patent, EP 3434077 A1, 2016-05-20.
发明人李文辉,韩伟,孙丽萍. "A Process for Preparing High-Purity 3-(Methylamino)pyrazine-2-carboxamide" [P]. 中国发明专利, 专利号 CN 116589596 A, 授权公告日 2016-11-19.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2014, 869, (9), 45-61.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2020, 228, (2), 4837-4842.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-(Methylamino)pyrazine-2-carboxamide Using HRMS and NMR". Anal. Chim. Acta, 2022, 2201, 6611-6616.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2013, 136, (3), 8987-8997.