(+)- and (−)-Spiroreticulatine, A Pair of Unusual Spiro Bisheterocyclic Quinoline-imidazole Alkaloids from the South China Sea Sponge Fascaplysinopsis reticulata

(+)- and (−)-Spiroreticulatine, A Pair of Unusual Spiro Bisheterocyclic Quinoline-imidazole Alkaloids from the South China Sea Sponge Fascaplysinopsis reticulata Reticulatins A and B and hyrtioreticulin F from the marine sponge Hyrtios reticulatus Aplysinopsin-type and Bromotyrosine-derived Alkaloids from the South China Sea Sponge Fascaplysinopsis reticulata Novel marine sponge alkaloids 3. β-carbolinium salts from Fascaplysinopsis reticulata Structures and cytotoxicities of fascaplysin and related alkaloids from two marine phyla—Fascaplysinopsis sponges and Didemnum tunicates A β-Carboline Alkaloid from the Papua New Guinea Marine Sponge <i>Hyrtios reticulatus</i> A β-Carboline Alkaloid from the Papua New Guinea Marine Sponge Hyrtios reticulatus Uncommon Bis‐quinolizidine Alkaloids from the Hainan Sponge Neopetrosia chaliniformis Fasciospyrinadine, a novel sesquiterpene pyridine alkaloid from a Guangxi spongeFasciospongiasp. Novel Sulfated Sesterterpene Alkaloids from the Marine Sponge Fasciospongia sp.