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5-hydroxytryptamine-derived alkaloids from two marine sponges of the genus Hyrtios.

Indonesian specimens of the marine sponges Hyrtios erectus and H. reticulatus were found to contain 5-hydroxytryptamine-derived alkaloids. Their structures were determined on the basis of their…
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5-Hydroxytryptamine-Derived Alkaloids from Two Marine Sponges of the Genus Hyrtios

Indonesian specimens of the marine sponges Hyrtios erectus and H. reticulatus were found to contain 5-hydroxytryptamine-derived alkaloids. Their structures were determined on the basis of their…
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New sesquiterpene/quinones from two sponges of the genus Hyrtios.

TLDR
Two sponges of the genus Hyrtios have been found to contain new sesquiterpene/quinones identified by detailed spectroscopic analysis and assignment of the (13)C NMR signals of four types of 4, 9-friedodrimene skeletons found in sponge is presented.
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(2R,3R,7Z)-2-Aminotetradec-7-ene-1,3-diol, a new amino alcohol from the caribbean sponge Haliclona vansoesti.

The Caribbean marine sponge Haliclona vansoesti was found to contain a high amount (5% dry wt) of a new analogue of 4-sphingenine, (2R,3R, 7Z)-2-aminotetradec-7-ene-1,3-diol (1). Its structure was…
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New calamenene sesquiterpenes from Tarenna madagascariensis

TLDR
Four calamenene sequiterpenes, plus the amorphane sesquiterpene, have been isolated from the Madagascan shrub Tarenna madagascariensis (Rubiaceae) and their structures determined by spectroscopic methods and chemical correlations.
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New terpenoids from two Indonesian marine sponges

TLDR
A C16 norsesterterpenoid and a norditerpenoid have been isolated from the marine sponges Mycale euplectelloides and Diacarnus megaspinorhabdosa, respectively by spectroscopic methods.
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