发明人罗永刚,徐明华,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114382131 A, 授权公告日 2017-10-21.
Park J H, Roberts E F, Hughes D C. "Method for the Synthesis of 1-Ethyl-2-methyl-1,4-dihydropyrimidine" [P]. US Patent, US 9175584 B2, 2018-08-05.
发明人李文辉,何建平,唐晓军. "A Process for Preparing High-Purity 1-Ethyl-2-methyl-1,4-dihydropyrimidine" [P]. 中国发明专利, 专利号 CN 112102037 B, 授权公告日 2022-04-14.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2017, 1357, 7504-7518.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2019, 1158, (8), 8735-8747.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-2-methyl-1,4-dihydropyrimidine Using HRMS and NMR". Molecules, 2020, 886, (5), 7061-7075.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2017, 939, (7), 7695-7721.