Acta Cryst. (2008). E64, o436 [ doi:10.1107/S1600536808000640 ]
Abstract: The structure of the title compound [systematic name: (3S,6S)-3-(4-hydroxybenzyl)-6-(1H-indol-3-ylmethyl)piperazine-2,5-dione dimethylformamide solvate], C20H19N3O3·C3H7NO, contains hydrogen-bonded tapes typical for diketopiperazines. The structure is stabilized by strong intermolecular interactions of the types O-HO and N-HO involving the dipeptide and the solvent molecules. The absolute configuration was known from the starting materials.
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