title: 7-(5-Methyl-sulfanyl-β-d-erythrofuran-osyl)-7H-pyrrolo-[2,3-d]pyrimidin-4-amine monohydrate (MT-tubercidin·H(2)O).
abstract: The title compound, C(12)H(16)N(4)O(3)S·H(2)O, which has potential as a possible anti-malarial drug, was studied when small deviations in melting points, for two differently aged preparations, were observed. The unexpected existence of a water mol-ecule of crystallization is considered to be the cause of this variation. The 7H-pyrrolo-[2,3-d]pyrimidine unit is very slightly puckered with a total puckering amplitude of 0.035 (2) Å; its mean plane makes an angle of 88.40 (12)° with the mean plane through the ribofuranosyl unit. In the crystal, the mol-ecules are bound by strong O-H⋯N and N-H⋯O hydrogen bonds, utilizing all available protons and linking mainly through the water of crystallization.
authors: Carbohydrate Chemistry Group, Industrial Research Limited, PO Box 31-310, Lower Hutt 5040, New Zealand.
authors: Graeme J
authors: GJ
authors: Gainsford
authors: Richard F G
authors: RF
authors: Fröhlich
authors: Gary B
authors: GB
authors: Evans
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