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Fatty acid and sterol composition of eight brown algae from the Senegalese coast
Abstract 1. 1. The fatty acid and sterol composition of eight Phaeophyceae from the Senegalese coast were investigated by capillary gas chromatography. 2. 2. About forty fatty acids were identifiedExpand
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Isolation of bioactive 5α,8α-epidioxy sterols from the marine sponge Luffariella cf. variabilis
The lipid extract of the marine sponge Luffariella cf. variabilis from Mayotte (Indian Ocean) has proven to be an extraordinarily rich source of a wide variety of unusual steroids belonging to the ...
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Didmolamide A and B, two new cyclic hexapeptides from the marine ascidian Didemnum molle.
Two novel cyclic hexapeptides, didmolamides A and B, were isolated from the compound ascidian Didemnum molle collected in Madagascar. The structure of the two peptides was elucidated byExpand
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Ptilomycalin D, a polycyclic guanidine alkaloid from the marine sponge Monanchora dianchora.
A new polycyclic guanidine alkaloid, ptilomycalin D, and the known crambescidic acid were isolated from the marine sponge Monanchora dianchora collected in Nosy-Be, northwest of Madagascar, in theExpand
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Nor-sterols in Axinella proliferans, sponge from the Indian Ocean
An examination of the sterol mixture of the sponge Axinella proliferans collected in the Indian Ocean led to the isolation of nine A-nor-sterols, including two rare nor-sterols with a D-ringExpand
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New 9,11-secosterols from gorgonia Subergorgia suberosa of the Indian Ocean
Three new 9,11-secosterols, 3 beta,6 alpha,11-trihydroxy-9,11-seco-5 alpha-cholest-7-ene-9-one (1), 24S- (2a), and 24R-methyl-3 beta,6 alpha, 11-trihydroxy-9,11-seco-5 alpha-cholest-7,22E-diene-9-oneExpand
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New sesterterpenes from Madagascan Lendenfeldia sponges
A new furanoterpene designated dehydrofurodendin and nine scalarane sesterterpenes of which four are new, were isolated from two different species of Madagascan sponges of the genus Lendenfeldia,Expand
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Novel 3-β-methoxysteroids from the senegalse sponge Microscleroderma spirophora
Abstract The Senegalse sponge Microscleroderma spirophora has been found to produce exclusively very unusual 3β-methoxysteroids in place of the common 3β-hydroxysteroids. Six differentExpand
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Four new cytotoxic cyclic hexa- and heptapeptides from the marine ascidian Didemnum molle
Abstract Two novel cyclic hexapeptides, comoramides A and B and two new cyclic heptapeptides, mayotamides A and B were isolated, separately, from two collections of the compound ascidian DidemnumExpand
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