New 3-oxo-chol-4-en-24-oic acids from the marine soft coral Eleutherobia sp

  • J Nat Prod. 2004 Dec;67(12):2130-2. doi: 10.1021/np049766t.
Sarah C Lievens  1 ,  Håkon Hope ,  Tadeusz F Molinski
Affiliations
  • 1. Department of Chemistry, One Shields Avenue, University of California, Davis, California 95616, USA.
PMID: 15620271 DOI: 10.1021/np049766t
Abstract

Two novel cholic acid derivatives and three known Steroids were isolated from an octocoral Eleutherobiasp. from Pohnpei Micronesia along with the known briareins minabein-1 (6), minabein-4 (7), minabein-6 (8), minabein-8 (9), and minabein-9 (10). X-ray crystallographic analysis of the known compound minabein-4 allowed assignment of its correct relative and absolute stereochemistry. Consequently, a different structure proposed for the same compound (named independently as nui-inoalide-D) is incorrect.

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