Neopetrocyclamines A and B, Polycyclic Diamine Alkaloids from the Sponge Neopetrosia cf exigua

Neopetrocyclamines A and B, Polycyclic Diamine Alkaloids from the Sponge <i>Neopetrosia</i> cf <i>exigua</i> Neopetrosiamine A, biologically active bis-piperidine alkaloid from the Caribbean sea sponge Neopetrosia proxima Njaoamines G and H, two new cytotoxic polycyclic alkaloids and a tetrahydroquinolone from the marine sponge Neopetrosia sp. Neopetrosiamine A, biologically active bis-piperidine alkaloid from the Caribbean sea sponge Neopetrosia proxima Neopetrosins A–D and Haliclorensin D, Indole-C-Mannopyranosides and a Diamine Alkaloid Isolated from the South China Sea Marine Sponge Neopetrosia chaliniformis Tetradehydrohalicyclamine A and 22-Hydroxyhalicyclamine A, New Cytotoxic Bis-piperidine Alkaloids from a Marine Sponge <i>Amphimedon</i> sp. 9′<i>-Epi</i>-3<i>β</i>,3′<i>β</i>-dimethylxestospongin C, a New Macrocyclic Diamine Alkaloid from the Hainan Sponge<i>Neopetrosia exigua</i> 9′-Epi-3β,3′β-dimethylxestospongin C, a New Macrocyclic Diamine Alkaloid from the Hainan SpongeNeopetrosia exigua Tetradehydrohalicyclamine A and 22-Hydroxyhalicyclamine A, New Cytotoxic Bis-piperidine Alkaloids from a Marine Sponge Amphimedon sp. Exiguamine A, an Indoleamine-2,3-dioxygenase (IDO) Inhibitor Isolated from the Marine Sponge Neopetrosia exigua