Gesashidine A, a β-Carboline Alkaloid with an Imidazole Ring from a Thorectidae Sponge

Gesashidine A, a β-Carboline Alkaloid with an Imidazole Ring from a Thorectidae Sponge Thorectandramine, a novel β-carboline alkaloid from the marine sponge Thorectandra sp. Seragadine A, a α-Carboline Alkaloid from Marine Sponge 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. Zamamidines A and B, New Manzamine Alkaloids from the Sponge Amphimedon Species Keramamine-A and -B, novel antimicrobial alkaloids from the Okinawan marine sponge sp. Four new β-carboline alkaloids isolated from two Okinawan marine sponges of Xestospongia sp. and Haliclona sp.) Konbamidin, a New Indole Alkaloid from the Okinawan Marine Sponge Ircinia sp. New b-carboline alkaloid from marine sponge Hyrtios reticulatus