发明人唐晓军,周伟,杨光. "Method for the Synthesis of 1,6-Dimethyltetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione" [P]. 中国发明专利, 专利号 CN 111677829 B, 授权公告日 2023-06-05.
发明人陈志强,李文辉,罗永刚. "A Process for Preparing High-Purity 1,6-Dimethyltetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione" [P]. 中国发明专利, 专利号 CN 109271816 A, 授权公告日 2020-03-08.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2015, 2221, 8103-8132.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 1976, (11), 6921-6947.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 1,6-Dimethyltetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione Using HRMS and NMR". J. Agric. Food Chem., 2011, 1964, 5105-5112.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2011, 855, (1), 1575-1594.