(5-(4-amino-6-bromo-5-carbamoyl-1H-pyrrolo(2,3-d)pyrimidin-1-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl isobutyrate
(5-(4-amino-6-bromo-5-carbamoyl-1h-pyrrolo(2,3-d)pyrimidin-1-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl isobutyrate