Abstract
Sodium salt of (20R)-3α,4β-dihydroxycholest-5-ene-21-yl sulfate and disodium salts of (20R)-4β-hydroxycholest-5-ene-3α,21-diyl disulfate, (20R)-24-methylcholest-5,24(28)-diene-3α,21-diyl disulfate, (20R)-24-methyl-5α-cholest-24(28)-ene-3α,21-diyl disulfate, (20R)-cholest-5-ene-3α,21-diyl disulfate, (20R)-5α-cholestane-3α,21-diyl disulfate, and (20R)-3α-hydroxycholest-5-ene-2β,21-diyl disulfate were isolated from the far eastern starfish Diplopteraster multipes and characterized. These compounds differ structurally from sulfated polyhydroxysteroids in other starfish species. At the same time, they are typical secondary metabolites of Ophiuroidea and have some structural features characteristic of the ophiuroid-isolated steroids, namely the 3α-hydroxy (or 3α-sulfoxy) and 21-sulfoxy groups. These data support the opinion of some taxonomists that starfishes and ophiuroids are phylogeneteically related classes and are closer to each other than to other classes of the Echinodermata phylum.
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Levina, E.V., Andriyashchenko, P.V., Kalinovsky, A.I. et al. Steroid Compounds from the Far Eastern Starfish Diplopteraster multipes . Russian Journal of Bioorganic Chemistry 28, 189–193 (2002). https://doi.org/10.1023/A:1015752119729
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DOI: https://doi.org/10.1023/A:1015752119729