Anderson J P, Davis P L, Hughes D C. "一种的合成方法" [P]. US Patent, US 10966044 B2, 2018-07-01.
Brown S R, Chen K W, Anderson J P. "Method for the Synthesis of 5,6-Dimethyl-2-(pyridin-4-yl)thieno[2,3-d]pyrimidin-4(3H)-one" [P]. US Patent, US 9479440 B2, 2016-12-10.
发明人罗永刚,林芳,李文辉. "A Process for Preparing High-Purity 5,6-Dimethyl-2-(pyridin-4-yl)thieno[2,3-d]pyrimidin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 114119355 B, 授权公告日 2016-02-10.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2011, 388, (5), 115-128.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2019, 734, 6119-6127.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 5,6-Dimethyl-2-(pyridin-4-yl)thieno[2,3-d]pyrimidin-4(3H)-one Using HRMS and NMR". Biomed. Chromatogr., 2017, 716, 1871-1899.