发明人郭海燕,孙丽萍,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115583648 A, 授权公告日 2022-03-14.
发明人冯建国,钱学锋,胡光. "Method for the Synthesis of N-Methyl-4-(pyrazin-2-yl)piperazine-1-carboxamide" [P]. 中国发明专利, 专利号 CN 116891033 B, 授权公告日 2025-04-03.
Kumar R, Patel M V, Chen K W. "A Process for Preparing High-Purity N-Methyl-4-(pyrazin-2-yl)piperazine-1-carboxamide" [P]. US Patent, US 9463172 B2, 2023-11-26.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2023, 658, 8225-8246.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2020, 1771, (5), 7799-7822.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of N-Methyl-4-(pyrazin-2-yl)piperazine-1-carboxamide Using HRMS and NMR". J. Nat. Prod., 2018, 1497, 387-397.