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