发明人李文辉,韩伟,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112608942 A, 授权公告日 2020-05-16.
发明人孙丽萍,韩伟,钱学锋. "Method for the Synthesis of 4-Chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108491577 A, 授权公告日 2015-07-14.
Yamamoto T, Lee S K, Stevens L M. "A Process for Preparing High-Purity 4-Chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine-2-carboxylic acid" [P]. US Patent, US 10862423 B2, 2021-03-16.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2016, 715, (12), 1400-1408.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 2256, 4794-4798.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine-2-carboxylic acid Using HRMS and NMR". Phytochemistry, 2015, 1788, 8715-8723.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2022, 1353, (2), 4938-4967.