Sorangiadenosine, a new sesquiterpene adenoside from the myxobacterium Sorangium cellulosum

Sorangiadenosine (1), a novel nucleoside possessing a bicyclic, eudesmane-type sesquiterpene as an auxiliary component, was isolated from the culture broth of the gliding bacterium Sorangium cellulosum KM1003, collected from Korean soil. The chemical structure of this compound was determined by combined spectroscopic and chemical analyses. The new compound exhibited. moderate antibacterial activity against a wide range of bacterial strains.