Echinamines A and B, First Aminated Hydroxynaphthazarins from the Sea Urchin Scaphechinus mirabilis

Echinamines A and B, First Aminated Hydroxynaphthazarins from the Sea Urchin <i>Scaphechinus </i><i>m</i><i>irabilis</i> Echinamines A and B, First Aminated Hydroxynaphthazarins from the Sea Urchin <i>Scaphechinus </i><i>m</i><i>irabilis</i> New<i>N</i>-Acyl Taurine from the Sea Urchin<i>Glyptocidaris crenularis</i> Hypalocrinins, Taurine-Conjugated Anthraquinone and Biaryl Pigments from the Deep Sea Crinoid <i>Hypalocrinus naresianus</i> Nakijinamines C–E, New Heteroaromatic Alkaloids from the Sponge Suberites Species Cinachyramine, the novel alkaloid possessing a hydrazone and two aminals from Cinachyrella sp. Isolation and Structure of Pulcherrimine, a Novel Bitter-Tasting Amino Acid, from the Sea Urchin (<i>Hemicentrotus</i> <i>p</i><i>ulcherrimus</i>) Ovaries Mirabilins (A-F): New Alkaloids From a Southern Australian Marine Sponge, Arenochalina mirabilis New Diketopiperazine Derivatives Isolated from Sea Urchin-Derived Bacillus sp. Axiphenylalaninium and Axityrosinium, Modified Amino Acids from the Mediterranean Marine Sponge <i>Axinella polypoides</i>