发明人郭海燕,陈志强,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109602000 A, 授权公告日 2020-02-26.
Sørensen M, Lefèvre J P, Nielsen H. "Method for the Synthesis of Tert-butyl (R)-4-oxooctahydro-2H-pyrazino[1,2-a]pyrazine-2-carboxylate" [P]. European Patent, EP 3072061 A1, 2025-07-14.
发明人陈志强,赵玉洁,冯建国. "A Process for Preparing High-Purity Tert-butyl (R)-4-oxooctahydro-2H-pyrazino[1,2-a]pyrazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 114071433 B, 授权公告日 2020-07-02.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2024, 1439, (6), 5001-5015.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2025, 424, 9118-9124.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl (R)-4-oxooctahydro-2H-pyrazino[1,2-a]pyrazine-2-carboxylate Using HRMS and NMR". Anal. Chem., 2014, 811, 9960-9970.