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Sesquiterpene Lactones from Mikania micrantha.
Mikania micrantba H . B. K. (Compositae, tribe Eupatoriae) is chemically a variable species. Two collections from the Canal Zone (Panama) yielded mikanolide 111 and dihydromikanolide 151 ( l ) ,Expand
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Brominated polyacetylenic acids from the marine sponge Xestospongia muta: inhibitors of HIV protease.
The EtOAc extract of the sponge Xestospongia muta collected in Colombus Island, Bahamas, yielded eleven straight-chain unsaturated, polyacetylenic, brominated acids, seven of which were identified onExpand
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Minor and trace sterols in marine invertebrates 53: Further novel marine sterols resulting from triple and quadruple biomethylation of the cholesterol side-chain
The isolation and structure elucidation of nine new trace sterols with highly branched side chains from a Pseudaxinyssa species from the Australian Great Barrier Reef are described.
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Sterols of the cultured dinoflagellate Pyrocystis lunula
Eighteen components of the sterol fraction of Pyrocystis lunula have been identified. In addition to 4 alpha-methyl sterols (typical dinoflagellate sterols), regular sterols, both with a saturatedExpand
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Sterols ofKalanchoe pinnata: First report of the isolation of both C-24 epimers of 24-alkyl-Δ25-sterols from a higher plant
Eighteen sterols were isolated from the aerial parts ofKalanchoe pinnata (Crassulaceae) including four novel sterols,viz. (24R)-stigmasta-5,25-dien-3β-ol (24-epiclerosterol),Expand
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Sterol patterns of cultured zooxanthellae isolated from marine invertebrates: Synthesis of gorgosterol and 23-desmethylgorgosterol by aposymbiotic algae.
QUANTITATIVE STEROL COMPOSITIONS OF CULTURED ZOOXANTHELLAE ISOLATED FROM VARIOUS PACIFIC AND ATLANTIC INVERTEBRATE HOSTS: Zoanthus sociatus (a zoanthid), Oculina diffusa (a scleractian coral),Expand
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