Abstract
Starfish extracts have been reported to exhibit a broad spectrum of pharmacological properties, which are related to the presence of typical steroidal oli-goglycosides. In the animal kingdom, these metabolites have only been found in the marine phylum Echinodermata and particularly in the class Asteroidea (sea stars). This communication offers a general view of steroid oligoglycoside distribution among starfishes and focuses on a number of recent examples, much of these from the authors laboratory, to discuss structural characteristics, biological activities and methods of investigation.
Keywords: Steroidal oligoglycosides, Asteroidea, Asterosaponins, saponins, cyclicsteroidal glycosides, echinaster sepositus, glycosides, polyhysroxysteroids, hmqc-tocsy
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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