发明人徐明华,韩伟,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114903011 A, 授权公告日 2015-09-16.
发明人唐晓军,郑宇鹏,朱建伟. "Method for the Synthesis of 3-Hydroxy-5-methyl-1-phenylthieno-[2,3-d]pyrimidine-2,4(1H,3H)-dione" [P]. 中国发明专利, 专利号 CN 116919183 A, 授权公告日 2022-10-25.
发明人郑宇鹏,韩伟,张德明. "A Process for Preparing High-Purity 3-Hydroxy-5-methyl-1-phenylthieno-[2,3-d]pyrimidine-2,4(1H,3H)-dione" [P]. 中国发明专利, 专利号 CN 109562940 B, 授权公告日 2022-08-23.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2017, 1054, 4663-4677.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2018, 1336, (1), 6450-6461.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 3-Hydroxy-5-methyl-1-phenylthieno-[2,3-d]pyrimidine-2,4(1H,3H)-dione Using HRMS and NMR". J. Sep. Sci., 2010, 1695, 8324-8348.