Two novel alkaloids from the South China Sea marine sponge Dysidea sp.

Two novel alkaloids from the South China Sea marine sponge Dysidea sp. Spongimides A and B, two new alkaloids from the marine sponge Spongia sp. A New Diketopiperazine Derivative from the South China Sea Sponge<i>Dysidea</i><i>fragilis</i> Antibacterial Meroterpenoids from the South China Sea Sponge &lt;i&gt;Dysidea&lt;/i&gt; sp. Dysideaprolines A−F and Barbaleucamides A−B, Novel Polychlorinated Compounds from a<i>Dysidea</i>Species Dysideaprolines A−F and Barbaleucamides A−B, Novel Polychlorinated Compounds from a<i>Dysidea</i>Species Three New Diketopiperazines from a Marine Sponge Dysidea fragilis Dysamide U, a new trichlorinated diketopiperazine from the sponge <i>Dysidea sp</i> New Polyhydroxy Sterols, Dysidamides, and a Dideoxyhexose from the Sponge Dysidea herbacea New Diketopiperazines from the Sponge<i>Dysidea chlorea</i>