Stereochemistry of the Modified Tryptophan Residues Contained in Konbamide and Keramamide a Isolated from Marine Sponges of the GenusTheonella
- 1 July 1994
- journal article
- research article
- Published by Taylor & Francis in Natural Product Letters
- Vol. 4 (4) , 293-296
- https://doi.org/10.1080/10575639408043921
Abstract
The absolute configurations of the unusual tryptophan-derived amino acid residues, 2-bromo-5-hydroxytryptophan and 6-chloro-5-hydroxy-N-methyltryptophan, contained in the cyclic peptides konbamide (1) and keramamide A (2), respectively, previously isolated from Okinawan marine sponges Theonella sp. were determined to be both L on the basis of chiral GC and HPLC analyses.Keywords
This publication has 3 references indexed in Scilit:
- Shimofuridin A, a nucleoside derivative embracing an acylfucopyranoside unit isolated from the Okinawan marine tunicate Aplidium multiplicatumThe Journal of Organic Chemistry, 1994
- Konbamide, a novel peptide with calmoduiin antagonistic activity from the Okinawan marine sponge Theonella sp.Journal of the Chemical Society, Chemical Communications, 1991
- Keramamide A, a novel peptide from the Okinawan marine sponge Theonella sp.Journal of the Chemical Society, Perkin Transactions 1, 1991