Abstract
A novel hopanoid triterpene, (22S)-6-O-acetyl-21βH-hopane-3β,6β,22,29-tetraol, was isolated from oakmoss (Evernia prunastri (L.) Ach.), as identified from 1H, 13C, DEPT, COSY, NOESY, HSQC and HMBC NMR, MS and IR spectroscopy. During recrystallisation a new compound, 30-nor-6-O-acetyl-3β,6β-dihydroxy-21αH-hopan-22-one, was formed by a formal loss of methanol from the dihydroxypropyl moiety. No biological activity was found for the naturally occurring compound upon testing against a series of fish and human pathogenic bacteria.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have