Longamide and 3,7-dimethylisoguanine, two novel alkaloids from the marine sponge Agelas longissima

Longamide and 3,7-dimethylisoguanine, two novel alkaloids from the marine sponge Agelas longissima A novel bromopyrrole alkaloid from the sponge Agelas longissima with antiserotonergic activity Agelamadins A and B, Dimeric Bromopyrrole Alkaloids from a Marine Sponge Agelas sp. 1,3-Dimethylisoguanine, a New Purine from the Marine Sponge <i>Amphimedon viridis</i> Nagelamides A−H, New Dimeric Bromopyrrole Alkaloids from Marine Sponge <i>Agelas</i> Species Nagelamides A−H, New Dimeric Bromopyrrole Alkaloids from Marine Sponge <i>Agelas</i> Species Novel Bromopyrrole Alkaloids from the Sponge <i>Agelas dispar</i> Novel Bromopyrrole Alkaloids from the Sponge <i>Agelas dispar</i> Nagelamide J, a Novel Dimeric Bromopyrrole Alkaloid from a Sponge Agelas Species 2-Debromonagelamide U, 2-Debromomukanadin G, and 2-Debromonagelamide P from Marine Sponge Agelas sp.