Isolation of 5′-O-sulfamyladenosine and related 3′-O-β-glucosylated adenosines from the nucleocidin producer Streptomyces calvus

Funding: We thank EPSRC (EP/R013799/1) for a grant (DB) and the University of St Andrews for a Studentship (XF). The isolation of three adenosine based metabolites 6–8 from Streptomyces calvus is reported. The metabolites are structurally related to the fluorine containing antibiotic nucleocidin 1 and two recently identified glycosylated fluoroadenosines 2 and 3, however in this case the three metabolites do not contain a fluorine, suggesting that the biosynthetic enzymes to the fluorometabolites also process their non-fluorinated counterparts. Publisher PDF