Isolation of Five-Membered Cyclitol Glycolipids, Crasserides: Unique Glycerides from the Sponge Pseudoceratina crassa
Crasserides 1a-6a, six new glycolipid analogues in which the sugar moiety is replaced by an unprecedented five-membered cyclitol, were isolated as a mixture from the sponge Pseudoceratina crassa (Hyatt), and their structures were determined by spectroscopic and chemical analysis.Compounds 1a-6a showed a high antifeedant activity on the fish Carassius auratus, which suggests their potential role as natural feeding deterrents.
Constantino, Valeria,Fattorusso, Ernesto,Mangoni, Alfonso
p. 186 - 191
(2007/10/02)
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