Polar exts. of O longicaudum contained unusual sterol sulfates together with a mixt. of common 3β-hydroxysterol sulfates. The more polar compd. was 5β-cholestane-3α,4α,11β,12β,21-pentol 3,21-disulfate (I). A 2nd group of unusual compds. were disulfated 3α,21-dihydroxysteroids. After solvolysis to remove the sulfate groups, they were identified as: (20R)-5α-cholestane-3α,21-diol, (20R)-cholest-5-ene-3α,21-diol, (20R,22E)-cholest-5,22-diene-3α,21-diol, and (20R)-24-methylcholest-5,24(28)-diene-3α,21-diol. Anal. of the nonsulfated sterol fractions showed the presence of common 3β-hydroxy sterols.
UNUSUAL SULFATED MARINE STEROIDS FROM THE OPHIUROID OPHIODERMA-LONGICAUDUM
RICCIO, Raffaele;
1985-01-01
Abstract
Polar exts. of O longicaudum contained unusual sterol sulfates together with a mixt. of common 3β-hydroxysterol sulfates. The more polar compd. was 5β-cholestane-3α,4α,11β,12β,21-pentol 3,21-disulfate (I). A 2nd group of unusual compds. were disulfated 3α,21-dihydroxysteroids. After solvolysis to remove the sulfate groups, they were identified as: (20R)-5α-cholestane-3α,21-diol, (20R)-cholest-5-ene-3α,21-diol, (20R,22E)-cholest-5,22-diene-3α,21-diol, and (20R)-24-methylcholest-5,24(28)-diene-3α,21-diol. Anal. of the nonsulfated sterol fractions showed the presence of common 3β-hydroxy sterols.File in questo prodotto:
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