Chen K W, O'Brien P Q, Johnson M A. "Method for the Synthesis of 4-Chloro-2-(methylthio)-6,7-dihydro-5H-cyclopenta[d]pyrimidine" [P]. US Patent, US 11900612 B2, 2021-12-25.
发明人罗永刚,李文辉,何建平. "A Process for Preparing High-Purity 4-Chloro-2-(methylthio)-6,7-dihydro-5H-cyclopenta[d]pyrimidine" [P]. 中国发明专利, 专利号 CN 117415638 B, 授权公告日 2017-08-10.
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". J. Chromatogr. A, 2025, 571, 7662-7668.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2025, 666, 4582-4608.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-2-(methylthio)-6,7-dihydro-5H-cyclopenta[d]pyrimidine Using HRMS and NMR". Phytochemistry, 2022, 641, (6), 7390-7401.