Acodontaster conspicuus

De Marino, S., Iorizzi, M., Zollo, F., Minale, L., Amsler, C.D., Baker, B.J., and McClintock, J.B., Isolation, structure elucidation, and biological activity of the steroid oligoglycosides and polyhydrox-ysteroids from the Antarctic starfish Acodontaster conspicuus, J. Nat. Prod., 60, 959, 1997. 

The remaining group of sea star compounds are the polyhydroxysteroids (Table 7.10). The aforementioned Echinasteridae family178 elaborates the polyhydroxysteroids shown in Structures 7.145-7.157, one of which (Structure 7.154)191 was previously reported from a Mediterranean sea star Sphaerodiscus placenta. The Antarctic Acodontaster conspicuus produces polyols (Structures 7.157—7.162) 57 hexol (Structure 7.159) can be found in the Mediterranean Coscinaste-rias tenuispina.192 Polyhydroxysteroid (Structure 7.152) has modest cytotoxicity and the polyols shown in Structures 7.158, 7.161, and 7.162 were inhibitory toward sympatric microorganisms none of the others tested displayed notable bioactivity. 

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