Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 6 (June 2013)


organic compounds



go2089 scheme

Acta Cryst. (2013). E69, o974-o975    [ doi:10.1107/S1600536813013986 ]

5-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-1,3-dimethyl-1H-chromeno[2,3-d]pyrimidine-2,4(3H,5H)-dione 3.5-hydrate

S. Roy and S. Das

Abstract: The title compound, C19H19N5O5·3.5H2O, crystallizes with 3.5 molecules of water in the asymmetric unit, one of which lies on a mirror plane. One of the water molecules links the molecules, forming centrosymmetric dimers. These dimers are then linked through further N-H...O and O-H...O hydrogen bonding, leading to the observed three-dimensional structure.


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[ doi:10.1107/S1600536813013986/go2089Isup3.cdx ]
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