Zamamiphidins B and C, Manzamine-Related Alkaloids from an Amphimedon sp. Marine Sponge Collected in Okinawa

Zamamiphidins B and C, Manzamine-Related Alkaloids from an Amphimedon sp. Marine Sponge Collected in Okinawa Zamamiphidin A, a New Manzamine Related Alkaloid from an Okinawan Marine Sponge Amphimedon sp. Zamamidine D, a Manzamine Alkaloid from an Okinawan <i>Amphimedon</i> sp. Marine Sponge Zamamidines A and B, New Manzamine Alkaloids from the Sponge Amphimedon Species A New Manzamine Congener from Marine Sponge Amphimedon sp. Keramaphidin B, a novel pentacyclic alkaloid from a marine sponge Amphimedon sp. : A plausible biogenetic precursor of manzamine alkaloids Three New Manzamine Congeners from <i>Amphimedon</i> Sponge Three New Manzamine Congeners from <i>Amphimedon</i> Sponge Nakadomarin A, a Novel Hexacyclic Manzamine-Related Alkaloid from Amphimedon Sponge Ma'eganedin A, a new manzamine alkaloid from Amphimedon sponge