发明人郑宇鹏,林芳,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113213053 A, 授权公告日 2019-01-23.
发明人陈志强,高志强,赵玉洁. "Method for the Synthesis of Methyl 4-oxo-3,4-dihydrothieno[3,2-d]pyrimidine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117545750 A, 授权公告日 2019-04-06.
发明人韩伟,高志强,陈志强. "A Process for Preparing High-Purity Methyl 4-oxo-3,4-dihydrothieno[3,2-d]pyrimidine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108338678 B, 授权公告日 2020-02-03.
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". Anal. Chim. Acta, 2010, 1924, 7748-7758.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2021, 551, (11), 6494-6511.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-oxo-3,4-dihydrothieno[3,2-d]pyrimidine-2-carboxylate Using HRMS and NMR". Anal. Chem., 2016, 505, (12), 4410-4428.