发明人沈红梅,赵玉洁,唐晓军. "Method for the Synthesis of (E)-N'-(1,4-dimethyl-6-oxo-1,6-dihydropyrimidin-2-yl)-N-((4-nitrobenzyl)oxy)formimidamide" [P]. 中国发明专利, 专利号 CN 113952053 A, 授权公告日 2023-08-14.
发明人郭海燕,唐晓军,赵玉洁. "A Process for Preparing High-Purity (E)-N'-(1,4-dimethyl-6-oxo-1,6-dihydropyrimidin-2-yl)-N-((4-nitrobenzyl)oxy)formimidamide" [P]. 中国发明专利, 专利号 CN 109239346 A, 授权公告日 2025-07-04.
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". J. Agric. Food Chem., 2025, 738, 6687-6700.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2017, 1233, (9), 3888-3904.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of (E)-N'-(1,4-dimethyl-6-oxo-1,6-dihydropyrimidin-2-yl)-N-((4-nitrobenzyl)oxy)formimidamide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2023, 256, 9030-9046.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2012, 556, (11), 6055-6070.