发明人冯建国,马晓峰,郭海燕. "Method for the Synthesis of Ethyl 2-({4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetate" [P]. 中国发明专利, 专利号 CN 108301331 B, 授权公告日 2022-12-28.
发明人徐明华,黄志刚,张德明. "A Process for Preparing High-Purity Ethyl 2-({4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetate" [P]. 中国发明专利, 专利号 CN 116752782 B, 授权公告日 2019-07-23.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2020, 984, (5), 7643-7670.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2023, 1156, 862-872.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-({4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetate Using HRMS and NMR". Environ. Sci. Technol., 2011, 750, (3), 5181-5189.