1,3-Bis(1,1-dimethylethyl) 2-[5-bromo-7-[(3aR,4R,6R,6aR)-tetrahydro-2,2-dimethyl-6-[(1E)-5-[(methylsulfonyl)oxy]-1-penten-1-yl]furo[3,4-d]-1,3-dioxol-4-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-yl]imidodicarbonate

(2R,3R,4S,5R)-2-(4-Amino-5-bromo-7H-pyrrolo[2,3-d]pyrimidin-7-yl)tetrahydro-5-[(3E)-5-[(phenylmethyl)amino]-3-penten-1-yl]-3,4-furandiol

(2R,3R,4R,5R)-5-(4-Amino-5-bromo-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2-ethenyl-4-fluorotetrahydro-3-furanol

5-Bromo-7-[(2R,3R,4R,5R)-4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-5-ethenyl-3-fluorotetrahydro-2-furanyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine

(2R,3S,4R,5R)-2-(4-Amino-5-bromo-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-5-ethenyl-4-fluorotetrahydro-3-furanol

1,1-Dimethylethyl N-[(4E)-5-[(2S,4R,5R)-5-(4-amino-5-bromo-7H-pyrrolo[2,3-d]pyrimidin-7-yl)tetrahydro-4-hydroxy-2-furanyl]-4-penten-1-yl]-N-[(3-fluorobicyclo[1.1.1]pent-1-yl)methyl]carbamate