Jørgensen K, Martínez F, Nowak P. "Method for the Synthesis of tert-Butyl 7-chloro-5-oxo-2,3-dihydroimidazo[1,2-c]pyrimidine-1(5H)-carboxylate" [P]. European Patent, EP 3312649 A1, 2019-08-17.
发明人孙丽萍,林芳,唐晓军. "A Process for Preparing High-Purity tert-Butyl 7-chloro-5-oxo-2,3-dihydroimidazo[1,2-c]pyrimidine-1(5H)-carboxylate" [P]. 中国发明专利, 专利号 CN 109171917 A, 授权公告日 2018-10-24.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2022, 2080, (10), 8433-8456.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2017, 1477, (3), 9291-9313.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 7-chloro-5-oxo-2,3-dihydroimidazo[1,2-c]pyrimidine-1(5H)-carboxylate Using HRMS and NMR". J. Sep. Sci., 2021, 1406, (3), 1521-1532.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2012, 906, (8), 7474-7493.