O'Brien P Q, Chen K W, Lee S K. "一种的合成方法" [P]. US Patent, US 11003291 B2, 2023-02-24.
发明人高志强,钱学锋,韩伟. "Method for the Synthesis of Ethyl 3-isobutyl-5-methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 116182349 A, 授权公告日 2023-01-05.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2013, 1401, (2), 7224-7248.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2016, 1024, (2), 6354-6369.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-isobutyl-5-methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxylate Using HRMS and NMR". Phytochemistry, 2018, 1730, (12), 3757-3780.