Schröder R, Williams B T, Chen K W. "一种的合成方法" [P]. US Patent, US 10940626 B2, 2017-11-12.
发明人林芳,赵玉洁,杨光. "Method for the Synthesis of tert-Butyl (R)-3-oxohexahydroimidazo[1,5-a]pyrazine-7(1H)-carboxylate" [P]. 中国发明专利, 专利号 CN 115662909 A, 授权公告日 2015-07-28.
发明人陈志强,孙丽萍,王建平. "A Process for Preparing High-Purity tert-Butyl (R)-3-oxohexahydroimidazo[1,5-a]pyrazine-7(1H)-carboxylate" [P]. 中国发明专利, 专利号 CN 112963417 B, 授权公告日 2021-12-24.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2013, 985, (4), 1961-1988.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2013, 1087, (10), 5215-5219.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl (R)-3-oxohexahydroimidazo[1,5-a]pyrazine-7(1H)-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2018, 750, 6580-6590.