发明人马晓峰,李文辉,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113011817 A, 授权公告日 2015-04-22.
发明人周伟,冯建国,郑宇鹏. "Method for the Synthesis of 7-Isobutyl-3-methyl-8-(propylamino)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 111234386 A, 授权公告日 2024-07-08.
发明人郑宇鹏,沈红梅,唐晓军. "A Process for Preparing High-Purity 7-Isobutyl-3-methyl-8-(propylamino)-3,7-dihydro-1H-purine-2,6-dione" [P]. 中国发明专利, 专利号 CN 111217711 A, 授权公告日 2024-04-08.
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". J. Sep. Sci., 2023, 2250, (5), 2773-2781.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2018, 1526, (6), 5712-5716.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 7-Isobutyl-3-methyl-8-(propylamino)-3,7-dihydro-1H-purine-2,6-dione Using HRMS and NMR". J. Agric. Food Chem., 2022, 632, (11), 135-148.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2019, 640, 3604-3627.