Abstract
(25 S)-3-Oxocholesta-1,4-dien-26-oic acid ( 1) and a new (25 S)-18-acetoxy-3-oxocholesta-1,4-dien-26-oic acid ( 2) were isolated from a soft coral Minabea sp. (cf. aldersladei) collected in North Sulawesi, Indonesia, together with two known cholic-acid-type compounds, 3-oxochol-1,4-dien-24-oic acid ( 3) and 3-oxochol-4-en-24-oic acid ( 4). The structures of these compounds were determined on the basis of their spectroscopic data. The absolute stereochemistry at C-25 of 2 was determined by comparative 1H NMR study using chiral anisotropic reagents [( S)- and ( R)-phenylglycine methyl esters]. This is the first to report compound 1 as a natural product.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
