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  • Title: Isolation and structure determination of obyanamide, a novel cytotoxic cyclic depsipeptide from the marine cyanobacterium Lyngbya confervoides.
    Author: Williams PG, Yoshida WY, Moore RE, Paul VJ.
    Journal: J Nat Prod; 2002 Jan; 65(1):29-31. PubMed ID: 11809060.
    Abstract:
    Obyanamide (1) was isolated from a variety of the marine cyanobacterium Lyngbya confervoides collected in Saipan, Commonwealth of the Northern Mariana Islands. Gross structure elucidation of this novel cyclic depsipeptide relied on extensive application of 2D NMR techniques. The absolute stereochemistry was deduced by chiral chromatography of the hydrolysis products and comparison with authentic and synthetic standards. Obyanamide (1) was cytotoxic against KB cells with an IC(50) of 0.58 microg/mL.
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