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Cyclo(l-tyrosyl-l-tryptophanyl) dimethylformamide solvate

DOI: 10.1107/s1600536808000640

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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—H...O and N—H...O involving the dipeptide and the solvent molecules. The absolute configuration was known from the starting materials.

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