(2R,3R,4R,5R)-2-(Hydroxymethyl)-5-(2-isobutyramido-6-oxo-3,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate

(2R,3R,4R,5R)-2-(Hydroxymethyl)-5-(2-isobutyramido-6-oxo-3,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate