发明人朱建伟,郭海燕,唐晓军. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111053138 A, 授权公告日 2019-08-09.
发明人郑宇鹏,唐晓军,沈红梅. "Method for the Synthesis of 2-Bromo-6-methyl-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 109593050 B, 授权公告日 2018-09-10.
发明人何建平,李文辉,韩伟. "A Process for Preparing High-Purity 2-Bromo-6-methyl-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 111538247 B, 授权公告日 2025-10-05.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2019, 870, 3228-3235.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2022, 157, 5732-5748.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 2-Bromo-6-methyl-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one Using HRMS and NMR". Biomed. Chromatogr., 2024, 1456, (7), 3819-3845.