发明人何建平,朱建伟,冯建国. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113294193 A, 授权公告日 2019-02-15.
发明人罗永刚,沈红梅,李文辉. "Method for the Synthesis of N-Methylpyrazine-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 113823148 A, 授权公告日 2025-11-06.
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". Rapid Commun. Mass Spectrom., 2017, 1125, (11), 1863-1886.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2011, 2471, (9), 3153-3159.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of N-Methylpyrazine-2-carbohydrazide Using HRMS and NMR". J. Agric. Food Chem., 2021, 2338, (12), 5440-5443.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2019, 245, (11), 6550-6560.