The kapakahines, cyclic peptides from the marine sponge Cribrochalina olemda

B. K S Yeung, Youichi Nakao, R. B. Kinnel, J. R. Carney, W. Y. Yoshida, P. J. Scheuer, M. Kelly-Borges

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Four cyclic peptides, kapakahines A-D, were isolated from the marine sponge Cribrochalina olemda. Their structures including complete stereochemistry were elucidated by spectral analysis and chemical degradation. The unique structural feature of these peptides is the lack of an amide linkage between two tryptophan residues. Instead the ring is closed by a bond from the indole nitrogen of Trp-1 to the β-carbon of Trp-2.

Original languageEnglish
Pages (from-to)7168-7173
Number of pages6
JournalJournal of Organic Chemistry
Volume61
Issue number20
DOIs
Publication statusPublished - 1996
Externally publishedYes

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Cyclic Peptides
Stereochemistry
Amides
Tryptophan
Spectrum analysis
Nitrogen
Carbon
Degradation
Peptides
indole

ASJC Scopus subject areas

  • Organic Chemistry

Cite this

Yeung, B. K. S., Nakao, Y., Kinnel, R. B., Carney, J. R., Yoshida, W. Y., Scheuer, P. J., & Kelly-Borges, M. (1996). The kapakahines, cyclic peptides from the marine sponge Cribrochalina olemda. Journal of Organic Chemistry, 61(20), 7168-7173. https://doi.org/10.1021/jo960725e

The kapakahines, cyclic peptides from the marine sponge Cribrochalina olemda. / Yeung, B. K S; Nakao, Youichi; Kinnel, R. B.; Carney, J. R.; Yoshida, W. Y.; Scheuer, P. J.; Kelly-Borges, M.

In: Journal of Organic Chemistry, Vol. 61, No. 20, 1996, p. 7168-7173.

Research output: Contribution to journalArticle

Yeung, BKS, Nakao, Y, Kinnel, RB, Carney, JR, Yoshida, WY, Scheuer, PJ & Kelly-Borges, M 1996, 'The kapakahines, cyclic peptides from the marine sponge Cribrochalina olemda', Journal of Organic Chemistry, vol. 61, no. 20, pp. 7168-7173. https://doi.org/10.1021/jo960725e
Yeung, B. K S ; Nakao, Youichi ; Kinnel, R. B. ; Carney, J. R. ; Yoshida, W. Y. ; Scheuer, P. J. ; Kelly-Borges, M. / The kapakahines, cyclic peptides from the marine sponge Cribrochalina olemda. In: Journal of Organic Chemistry. 1996 ; Vol. 61, No. 20. pp. 7168-7173.
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