发明人钱学锋,唐晓军,冯建国. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112602722 A, 授权公告日 2019-02-24.
发明人罗永刚,高志强,李文辉. "Method for the Synthesis of 1,5-Diethyl-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(4H)-one" [P]. 中国发明专利, 专利号 CN 110786223 A, 授权公告日 2015-02-24.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2014, 2097, (5), 9040-9063.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2025, 1666, (11), 66-93.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 1,5-Diethyl-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(4H)-one Using HRMS and NMR". J. Sep. Sci., 2020, 1307, (12), 3378-3385.