Publication: Conformational Analysis of the Cyclic Pentadepsipeptide Cyclo(Tro-Aib-Aib-Aib-Aib) in the Solid State and in Solution
Conformational Analysis of the Cyclic Pentadepsipeptide Cyclo(Tro-Aib-Aib-Aib-Aib) in the Solid State and in Solution
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Koch, K. N., Hopp, G., Linden, A., Moehle, K., & Heimgartner, H. (2001). Conformational Analysis of the Cyclic Pentadepsipeptide Cyclo(Tro-Aib-Aib-Aib-Aib) in the Solid State and in Solution. Helvetica Chimica Acta, 84, 502–512. https://doi.org/10.1002/1522-2675(20010228)84:2<502::AID-HLCA502>3.0.CO;2-#
Abstract
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Abstract
The cyclic 16-membered pentadepsipeptide cyclo(Tro-Aib-Aib-Aib-Aib) (1) was crystallized from MeOH/AcOEt/CH2Cl2, and its structure was established by X-ray crystallography (Fig. 1). There are two symmetry-independent molecules with different conformations in the asymmetric unit. Two intramolecular H-bonds stabilize two beta-turns in each molecule. On the other hand, two of the four Aib residues are forced to assume a nonfavorable nonhelical conformation in each of the symmetry-independent molecules (Table 1). The conformational study
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- Koch, Kristian N
- Hopp, Gudrun
- Moehle, Kerstin
- Heimgartner, Heinz
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Koch, K. N., Hopp, G., Linden, A., Moehle, K., & Heimgartner, H. (2001). Conformational Analysis of the Cyclic Pentadepsipeptide Cyclo(Tro-Aib-Aib-Aib-Aib) in the Solid State and in Solution. Helvetica Chimica Acta, 84, 502–512. https://doi.org/10.1002/1522-2675(20010228)84:2<502::AID-HLCA502>3.0.CO;2-#
