Hughes D C, Mueller T, Johnson M A. "Method for the Synthesis of (2R,3S,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2-isobutyramido-6-oxo-1,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3-yl methyl diisopropylphosphoramidite" [P]. US Patent, US 11092216 B2, 2019-04-04.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2012, 543, (12), 6510-6536.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2010, 2329, 8750-8777.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of (2R,3S,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2-isobutyramido-6-oxo-1,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3-yl methyl diisopropylphosphoramidite Using HRMS and NMR". Anal. Chem., 2016, 318, (8), 2825-2833.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2022, 186, (6), 4873-4885.