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Acta Cryst. (2013). E69, o1646-o1647
[ doi:10.1107/S1600536813027931 ]

(2R,3R,4S,5R)-2-(4-Amino-5-iodo-7H-pyrrolo­[2,3-d]pyrimidin-7-yl)-5-methyl­tetra­hydro­furan-3,4-diol

U. Flörke and B. Drewes

Abstract: The mol­ecular structure of the title compound, C11H13IN4O3, shows a ribo­furanos­yl-pyrrolo O-C-N-C torsion angle of 59.1 (3)°, with the central C-N bond length being 1.446 (3) Å. The C-I bond length is 2.072 (2) Å. The amino group is coplanar with the attached aromatic ring [C-N-C-N torsion angle = -178.8 (2)°] and forms an intra­molecular N-H...I hydrogen bond. In the crystal, O-H...N and N-H...O hydrogen bonds link the mol­ecules into puckered layers parallel to (001). These layers are bound to each other by secondary I...O inter­actions [3.2250 (17) Å], forming a three-dimensional framework.


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