Using enzyme assays to evaluate the structure and bioactivity of sponge-derived meroterpenes.
Using enzyme assays to evaluate the structure and bioactivity of sponge-derived meroterpenes.
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DOI:
10.1021/np900465e
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发表时间:
2009-10
影响因子:
5.1
通讯作者:
Crews, Phillip
中科院分区:
文献类型:
--
作者:
Robinson, Sarah J.;Hoobler, Eric K.;Riener, Michelle;Loveridge, Steven T.;Tenney, Karen;Valeriote, Frederick A.;Holman, Theodore R.;Crews, Phillip
Enzyme screening of crude sponge extracts prioritized a 2005 Papua New Guinea collection of Hyrtios sp. for further study. The MeOH extract contained puupehenone and four puupehenone analogs (1, 2, 3, 5, and 7) along with a new diastereomer, 20-epi-hydroxyhaterumadienone (4) and a new analog 15-oxo-puupehenoic acid (6). The drimane terpene core of 4 and 6 was rapidly dereplicated, and modified Mosher’s method identified 4 while 1D and 2D NMR techniques were used to solve 6. These compounds plus noteworthy repository natural products and standards were tested against three lipoxygenase isozymes, human 5-, 12- and 15-lipoxygenases. Significant potency and selectivity profiles were exhibited in the human 5-lipoxygenase assay by puupehenone (1) and jaspaquinol (9) and structural factors responsible for activity identified.
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