Indexed on: 06 Jan '12Published on: 06 Jan '12Published in: Acta Crystallographica Section E
In the two independent but very similar mol-ecules (A and B) of the title compound, C(14)H(16)N(2)O(8), both six-membered pyrimidine rings are nearly planar [maximum deviations = 0.010 (3) Å in A and 0.028 (3) Å in B]. The five-membered furan-ose ring in mol-ecule A adopts an envelope conformation, while the same ring in mol-ecule B has a twisted conformation. In the crystal, the A mol-ecules are linked via a pair of inter-molecular N-H⋯O hydrogen bonds, forming dimers. Each A mol-ecule is further linked to a B mol-ecule via a second N-H⋯O hydrogen bond. There are also a number of C-H⋯·O inter-actions present, leading to the formation of a three-dimensional network.