Structure of Hormaomycin, a Naturally Occurring Cyclic Octadepsipeptide, in the Crystal

Author:

Gruene Tim1,Sheldrick George M.1,Zlatopolskiy Boris D.23,Kozhushkov Sergei I.2,de Meijere Armin2

Affiliation:

1. Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany

2. Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany

3. Institute of Radiochemistry and Experimental Molecular Imaging, University Clinic Cologne, Kerpener Strasse 62, 50937 Köln, Germany

Abstract

Abstract The structure of hormaomycin has been determined in two crystals grown under different conditions, i. e. in the absence and in the presence of magnesium chloride. In both crystals, the macrocyclic hexadepsipeptide assumes a rather flat conformation, and the dipeptide side chain resides in the same equatorial plane. This is a significant difference in comparison with the compact bent conformation of hormaomycin in solution, as previously determined by an extensive NMR study

Publisher

Walter de Gruyter GmbH

Subject

General Chemistry

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