1.
Nat Prod Res
; 19(1): 75-9, 2005 Jan.
Artículo
en Inglés
| MEDLINE
| ID: mdl-15700649
RESUMEN
A new bromoindolesulfonic acid derivative, echinosulfonic acid D (1) was isolated from the New-Caledonian sponge Psammoclemma sp. in a minute quantity. The structure of the alkaloid was established by spectroscopic methods and, in particular, by ESI MSn experiments. Echinosulfonic acid D was cytotoxic to KB cells (IC50 2 microg/mL).