(2R,3S,4R,5R)-5-(4-Amino-5-iodo-7H-pyrrolo­[2,3-d]pyrimidin-7-yl)-4-fluoro-2-(hy­droxy­meth­yl)tetra­hydro­furan-3-ol

The title compound, C₁₁H₁₂FIN₄O₃, is composed of a 7-carbapurine moiety connected via an N atom to 2-de­oxy-2-fluoro-β-D-ribose. The conformation about the N-glycosydic bond is −anti with χ = −129.0 (11)°. The glycosydic N—C bond length is 1.435 (14) Å. The sugar ring adopts an Nconformation with an unsymmetrical twist O-endo-C-exo (^oT₄). The conformation around the C—C bond is +sc, with a torsion angle of 53.0 (12)°. In the crystal, mol­ecules are linked by N—H...O hydrogen bonds, forming chains propagating along the a axis. These chains are linked via O—H...I and C—H...O hydrogen bonds, forming layers lying parallel to the c axis.