Brown S R, Chen K W, Yamamoto T. "一种的合成方法" [P]. US Patent, US 11819048 B2, 2019-02-03.
发明人胡光,郑宇鹏,钱学锋. "Method for the Synthesis of methyl 6-oxopiperazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112143608 B, 授权公告日 2020-07-08.
发明人唐晓军,刘建华,马晓峰. "A Process for Preparing High-Purity methyl 6-oxopiperazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112697731 A, 授权公告日 2025-10-10.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2016, 826, (7), 5056-5079.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2025, 352, 8078-8085.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of methyl 6-oxopiperazine-2-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2025, 497, 8510-8515.