发明人罗永刚,孙丽萍,沈红梅. "Method for the Synthesis of 2,4-Diaminothieno[2,3-d]pyrimidine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114438384 B, 授权公告日 2018-07-13.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2017, 595, (8), 8504-8532.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2011, 1652, (9), 7969-7983.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 2,4-Diaminothieno[2,3-d]pyrimidine-6-carboxylic acid Using HRMS and NMR". J. Sep. Sci., 2022, 137, 5896-5907.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2024, 351, (9), 1370-1384.