Flabelliferins A and B, Sesterterpenoids from the South Pacific Sponge Carteriospongia flabellifera

Autor: Heidi R. Bokesch, Ranjala Ratnayake, Curtis J. Henrich, John A. Beutler, Thushara Diyabalanage, James B. McMahon, Kirk R. Gustafson, Tanya T. Ransom
Rok vydání: 2012
Předmět:
Zdroj: Journal of Natural Products. 75:1490-1494
ISSN: 1520-6025
0163-3864
DOI: 10.1021/np3003518
Popis: Two new sesterterpenoids named flabelliferins A (1) and B (2) were isolated from the lipophilic extract of the sponge Cateriospongia flabellifera, collected in the South Pacific near Vanuatu. The structure and absolute configuration of these two compounds were assigned by a combination of one- and two-dimensional NMR spectroscopy and by Mosher's ester analysis. Flabelliferin A (1) has a rare 25-homocheilanthane carbon skeleton, while flabelliferin B (2) is a 24-nor-25-homoscalarane sesterterpenoid.
Databáze: OpenAIRE