A New N-Carboxyindole Alkaloid from the Marine Sponge Rhaphisia pallida

A New N-Carboxyindole Alkaloid from the Marine Sponge Rhaphisia pallida A New <i>N</i>-Carboxyindole Alkaloid from the Marine Sponge <i>Rhaphisia pallida</i> Rhopaladins A ∼ D, new indole alkaloids from marine tunicate Rhopalaea sp New Indole Alkaloids from the Sponge Plakortis sp. Cytotoxic 5-Hydroxyindole Alkaloids from the Marine SpongeScalarispongiasp. Diketopiperazines from Rhabdastrella globostellata Pyrinodemin A, a cytotoxic pyridine alkaloid with an isoxazolidine moiety from sponge Amphimedon sp Stellettamide B, a New Indolizidine Alkaloid from a Sponge of the Genus <i>Stelletta</i> Stellettamide B, a New Indolizidine Alkaloid from a Sponge of the Genus <i>Stelletta</i> Two New Alkaloids from Xestospongia sp., a New Caledonian Sponge