Kowalski A, Björnsson E, Schröder R. "一种的合成方法" [P]. European Patent, EP 3698389 A1, 2022-03-16.
发明人周伟,朱建伟,徐明华. "Method for the Synthesis of 6-(2,2-Difluoroethyl)thieno[2,3-d]pyrimidin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 115482970 B, 授权公告日 2023-09-05.
发明人唐晓军,韩伟,钱学锋. "A Process for Preparing High-Purity 6-(2,2-Difluoroethyl)thieno[2,3-d]pyrimidin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 114951815 A, 授权公告日 2017-02-26.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2021, 1849, 22-48.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2017, 2189, 4143-4155.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 6-(2,2-Difluoroethyl)thieno[2,3-d]pyrimidin-4(3H)-one Using HRMS and NMR". Environ. Sci. Technol., 2019, 1990, 3961-3987.