Johansson L, Lefèvre J P, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3561699 A1, 2015-05-12.
Stevens L M, Mueller T, Roberts E F. "Method for the Synthesis of Ethyl 4-oxo-1,4-dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine-3-carboxylate" [P]. US Patent, US 11181935 B2, 2015-07-22.
发明人孙丽萍,赵玉洁,郑宇鹏. "A Process for Preparing High-Purity Ethyl 4-oxo-1,4-dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 111552777 B, 授权公告日 2025-01-19.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2019, 1388, (12), 6900-6916.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2020, 460, (1), 9774-9793.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-oxo-1,4-dihydrobenzo[4,5]imidazo[1,2-a]pyrimidine-3-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2015, 365, 6020-6033.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2020, 1098, 9185-9206.