Illudalane sesquiterpenoids of the alcyopterosin series from the Antarctic marine soft coral Alcyonium grandis.
Chemical investigation of the lipophilic extract of the Antarctic soft coral Alcyonium grandis led us to the finding of nine unreported sesquiterpenoids, 2-10. These molecules are members of the illudalane class and in particular belong to the group of alcyopterosins, illudalanes isolated from marine organisms. The structures of 2-10 were determined by interpretation of spectroscopic data. Repellency experiments conducted using the omnivorous Antarctic sea star Odontaster validus revealed a strong activity in the lipophilic extract of A. grandis against predation.
Istituto di Chimica Biomolecolare, Via Campi Flegrei 34, I 80078-Pozzuoli, Naples, Italy.
Marianna
M
Carbone
Laura
L
Núñez-Pons
Francesco
F
Castelluccio
Conxita
C
Avila
Margherita
M
Gavagnin
D000818:Animals; D037421:Anthozoa / Q000737:chemistry*; D005247:Feeding Behavior / Q000187:drug effects; D008386:Marine Biology; D015394:Molecular Structure; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013215:Starfish / Q000187:drug effects* / Q000502:physiology
D012717:Sesquiterpenes