New triterpenoids from the red sea sponge Siphonochalina siphonella

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Abstract

Clear differences were found when comparing the chemical content of the northern, Gulf of Eilat, to the southern-central, Dahlak archipelago, Red Sea sponge Siphonochalina siphonella. The Dahlak sponge was found to be richer in the more polar triterpenes. Nine new compounds (1-4, 7, 8, 15-17) were isolated and identified, among them two sipholane glycosides, sipholenoside A and B (7 and 8), and one compound, dahabinone A (17), possessing a new skeleton.

Original languageEnglish
Pages (from-to)175-180
Number of pages6
JournalJournal of Natural Products
Volume64
Issue number2
DOIs
StatePublished - 2001

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