Crystal structure ofN-(tert-butoxycarbonyl)glycyl-(Z)-β-bromodehydroalanine methyl ester [Boc–Gly–(β-Br)(Z)ΔAla–OMe]
Open Access
- 29 November 2014
- journal article
- research article
- Published by International Union of Crystallography (IUCr) in Acta Crystallographica Section E Structure Reports Online
- Vol. 70 (12), 596-598
- https://doi.org/10.1107/s1600536814025677
Abstract
The title compound, C11H17BrN2O5, is a dehydroamino acid with a C=C bond between the α- and β-C atoms. The amino acid residues are linkedtransto each other and there are no strong intramolecular hydrogen bonds. The torsion angles indicate a non-helical conformation of the molecule. The dipeptide folding is influenced by an intermolecular N—H...O hydrogen bond and also minimizes steric repulsion. In the crystal, molecules are linked by strong N—H...O hydrogen bonds, generating (001) sheets. The sheets are linked by weak C—H...O and C—H...Br bonds and short Br...Br [3.4149 (3) Å] interactions.Keywords
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