A new β-carboline alkaloid isolated from the marine sponge Hyrtios erecta

A new β-carboline alkaloid isolated from the marine sponge Hyrtios erecta A β-Carboline Alkaloid from the Papua New Guinea Marine Sponge <i>Hyrtios reticulatus</i> New b-carboline alkaloid from marine sponge Hyrtios reticulatus A β-Carboline Alkaloid from the Papua New Guinea Marine Sponge Hyrtios reticulatus Hyrtioerectines A−C, Cytotoxic Alkaloids from the Red Sea Sponge <i>Hyrtios </i><i>e</i><i>rectus</i> Hyrtioerectines A−C, Cytotoxic Alkaloids from the Red Sea Sponge <i>Hyrtios </i><i>e</i><i>rectus</i> 5-Hydroxytryptamine-Derived Alkaloids from Two Marine Sponges of the Genus Hyrtios 5-Hydroxytryptamine-Derived Alkaloids from Two Marine Sponges of the Genus <i>Hyrtios</i> 6-Hydroxymanzamine A and 3,4-Dihydromanzamine A, New Alkaloids from the Okinawan Marine Sponge Amphimedon sp. 6-Hydroxymanzamine A and 3,4-Dihydromanzamine A, New Alkaloids from the Okinawan Marine Sponge Amphimedon sp.