Yamamoto T, Park J H, Williams B T. "Method for the Synthesis of 8-((2-Methoxyethyl)amino)-3-methyl-7-pentyl-3,7-dihydro-1H-purine-2,6-dione" [P]. US Patent, US 10864276 B2, 2016-10-05.
Schröder R, Nowak P, Johansson L. "A Process for Preparing High-Purity 8-((2-Methoxyethyl)amino)-3-methyl-7-pentyl-3,7-dihydro-1H-purine-2,6-dione" [P]. European Patent, EP 3843451 A1, 2023-07-26.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2021, 516, (11), 3120-3142.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2018, 231, (11), 2327-2334.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 8-((2-Methoxyethyl)amino)-3-methyl-7-pentyl-3,7-dihydro-1H-purine-2,6-dione Using HRMS and NMR". Anal. Methods, 2013, 2308, 1666-1684.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2014, 1791, 4673-4679.