Journal
JOURNAL OF NATURAL PRODUCTS
Volume 69, Issue 12, Pages 1739-1744Publisher
AMER CHEMICAL SOC
DOI: 10.1021/np060006n
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Funding
- NCRR NIH HHS [C06 RR014503, C06 RR 14503-01] Funding Source: Medline
- NIAID NIH HHS [1R01 AI 36596, R01 AI036596] Funding Source: Medline
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Two new cyclic heptapeptides, stylisin 1( 1) and stylisin 2 ( 2), were isolated and characterized from the Jamaican sponge Stylissa caribica, in addition to the cyclic heptapeptide phakellistatin 13 ( 3) and the known bromopyrrole alkaloids sceptrin (4), stevensine (5), and oroidin (6). The new structures were assigned on the basis of 1D and 2D NMR spectroscopic data, as well as chemical methods for the elucidation of the absolute configuration of amino acids. The peptides and alkaloids have been evaluated for their antimicrobial, antimalarial, anticancer, anti-HIV-1, anti-Mtb, and antiinflammatory activities.
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