Isolation and X-ray crystal structure of racemic Xestospongin D from the Singapore marine sponge Niphates sp1

Isolation and X-ray crystal structure of racemic Xestospongin D from the Singapore marine sponge Niphates sp1 (+)-7<i>S</i>-Hydroxyxestospongin A from the Marine Sponge <i>Xestospongia</i> sp. and Absolute Configuration of (+)-Xestospongin D Antineoplastic Agents, 325. Isolation and Structure of the Human Cancer Cell Growth Inhibitory Cyclic Octapeptides Phakellistatin 10 and 11 from Phakellia sp. Antineoplastic Agents, 325. Isolation and Structure of the Human Cancer Cell Growth Inhibitory Cyclic Octapeptides Phakellistatin 10 and 11 from Phakellia sp. Isolation and structure of axinastatin 5 from a republic of comoros marine sponge &lt;i&gt;N&lt;/i&gt;-Methylniphatyne A, a New 3-Alkylpyridine Alkaloid as an Inhibitor of the Cancer Cells Adapted to Nutrient Starvation, from an Indonesian Marine Sponge of &lt;i&gt;Xestospongia&lt;/i&gt; sp. Xestosaprols from the Indonesian Marine Sponge <i>Xestospongia</i> sp. Xestosaprols from the Indonesian Marine Sponge <i>Xestospongia</i> sp. Antineoplastic Agents. 485. Isolation and Structure of Cribrostatin 6, a Dark Blue Cancer Cell Growth Inhibitor from the Marine Sponge <i>Cribrochalina </i>sp.^,1a Antineoplastic Agents. 485. Isolation and Structure of Cribrostatin 6, a Dark Blue Cancer Cell Growth Inhibitor from the Marine Sponge <i>Cribrochalina </i>sp.^,1a