发明人朱建伟,林芳,何建平. "Method for the Synthesis of N-(2-Ethylphenyl)-2-((4-oxo-3-propyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide" [P]. 中国发明专利, 专利号 CN 117361244 A, 授权公告日 2017-11-27.
发明人钱学锋,沈红梅,周伟. "A Process for Preparing High-Purity N-(2-Ethylphenyl)-2-((4-oxo-3-propyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide" [P]. 中国发明专利, 专利号 CN 110776993 B, 授权公告日 2019-10-02.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2012, 1237, (2), 8897-8924.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2020, 1695, 9380-9396.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of N-(2-Ethylphenyl)-2-((4-oxo-3-propyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2016, 372, (11), 5976-6003.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2016, 304, (1), 2600-2622.