Davis P L, Patel M V, Lee S K. "一种的合成方法" [P]. US Patent, US 10137139 B2, 2025-04-22.
Kowalski A, Björnsson E, Johansson L. "Method for the Synthesis of 1-(2-Aminoethyl)-5-(4-bromobenzyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one" [P]. European Patent, EP 3815887 A1, 2022-06-20.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2020, 1595, (4), 117-135.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2023, 1242, (8), 2975-3002.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2-Aminoethyl)-5-(4-bromobenzyl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one Using HRMS and NMR". J. Pharm. Biomed. Anal., 2011, 1725, (12), 1176-1181.