Brown S R, O'Brien P Q, Klinger H. "一种的合成方法" [P]. US Patent, US 11235533 B2, 2018-06-27.
Schröder R, Kowalski A, Jørgensen K. "Method for the Synthesis of N-[9-[(2R,5S)-5-(hydroxymethyl)-3-oxo-tetrahydrofuran-2-yl]-6-oxo-3H-purin-2-yl]-2-methyl-propanamide" [P]. European Patent, EP 3357441 A1, 2015-05-16.
Schröder R, Sørensen M, Rossi M. "A Process for Preparing High-Purity N-[9-[(2R,5S)-5-(hydroxymethyl)-3-oxo-tetrahydrofuran-2-yl]-6-oxo-3H-purin-2-yl]-2-methyl-propanamide" [P]. European Patent, EP 3903688 A1, 2019-05-03.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2011, 1342, (11), 5978-5983.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2022, 1553, (4), 5436-5451.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of N-[9-[(2R,5S)-5-(hydroxymethyl)-3-oxo-tetrahydrofuran-2-yl]-6-oxo-3H-purin-2-yl]-2-methyl-propanamide Using HRMS and NMR". Sci. Total Environ., 2012, 105, 1513-1528.