The biosynthesis of the aflatoxins

G. C. Elsworthy, J. S. E. Holker, J. M. McKeown, J B Robinson, Lawrence J. Mulheirn

Journal of the Chemical Society D Chemical Communications · 1970 · 25 citations · 0 references

Concepts

Abstract

A new metabolite of Aspergillus versicolor, demethylsterigmatocystin (II) has been converted into 5-hydroxydihydrosterigmatocystin (IV) specifically labelled with 14C in the O-methyl group—this compound is shown to be a biogenetic precursor of aflatoxins B2 and G2, (IX) and (XI), respectively, in A. parasiticus: a second new metabolite of A. versicolor has been shown to be 6-deoxyversicolorin-A (XII).