Scalarane metabolites of the nudibranch Glossodoris rufomarginata and Its dietary sponge from the South China Sea.
Chemical investigation of the nudibranch Glossodoris rufomarginata and its sponge prey provided additional evidence of the trophic relationship between Glossodoris nudibranchs and scalarane-containing sponges. Scalaradial (1) and its deacetyl derivative 2 were found to be the main components of the extract of the sponge, whereas a series of related scalaranes (3-7), probably derived from dietary scalaradial, were isolated from the mollusk. Two new scalarane sesterterpenes (5 and 6), exhibiting a keto functionalization at C-12, were characterized by spectroscopic methods and chemical correlations.
Gavagnin
Margherita
M
Istituto di Chimica Biomolecolare, CNR, Via Campi Flegrei 34, I 80078-Pozzuoli (Na), Italy. mgavagnin@icmib.na.cnr.it
Mollo
Ernesto
E
Docimo
Teresa
T
Guo
Yue-Wei
YW
Cimino
Guido
G
D000818:Animals; D006718:Homosteroids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D008974:Mollusca / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D009792:Oceans and Seas; D011161:Porifera / Q000737:chemistry*; D054830:Sesterterpenes; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*
D006718:Homosteroids; D054830:Sesterterpenes; D013729:Terpenes; C071197:scalaradial