发明人黄志刚,钱学锋,马晓峰. "Method for the Synthesis of 8,9-Dihydro-2-methyl-9-(4-methylphenyl)-8-oxo-7H-purine-6-carboxamide" [P]. 中国发明专利, 专利号 CN 108951153 B, 授权公告日 2018-04-26.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2010, 2241, 5024-5033.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2023, 151, (5), 7659-7675.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 8,9-Dihydro-2-methyl-9-(4-methylphenyl)-8-oxo-7H-purine-6-carboxamide Using HRMS and NMR". Chemosphere, 2021, 115, (3), 1569-1579.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2016, 695, 4582-4601.