发明人杨光,徐明华,钱学锋. "Method for the Synthesis of 5,6,7,8-Tetrahydroquinazoline-2,6-diamine dihydrochloride" [P]. 中国发明专利, 专利号 CN 113144047 A, 授权公告日 2015-08-28.
Brown S R, Johnson M A, Thompson G K. "A Process for Preparing High-Purity 5,6,7,8-Tetrahydroquinazoline-2,6-diamine dihydrochloride" [P]. US Patent, US 11088974 B2, 2020-09-24.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2019, 1279, 5310-5323.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2015, 530, (1), 7398-7422.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 5,6,7,8-Tetrahydroquinazoline-2,6-diamine dihydrochloride Using HRMS and NMR". Anal. Chim. Acta, 2021, 506, 5629-5649.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2025, 2052, 4290-4305.