发明人郭海燕,陈志强,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110047652 A, 授权公告日 2020-07-14.
发明人赵玉洁,胡光,张德明. "Method for the Synthesis of 2-Ethyl-1H-purine" [P]. 中国发明专利, 专利号 CN 113572218 A, 授权公告日 2019-03-06.
Chen K W, Klinger H, Lee S K. "A Process for Preparing High-Purity 2-Ethyl-1H-purine" [P]. US Patent, US 9472712 B2, 2024-05-20.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2013, 751, (10), 3792-3808.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2017, 1454, (3), 3810-3839.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 2-Ethyl-1H-purine Using HRMS and NMR". J. Pharm. Biomed. Anal., 2022, 304, (12), 7621-7651.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2014, 1357, (7), 7339-7343.