Incorporation experiments with [Me-2H3]methionine, [1-13C]- and [1,2-13C2]- acetate showed that the methyl groups of xanthofusin are derived from methionine, and the remaining carbon atoms are derived from three intact acetate units. Incorporation of13C-labelled 1,3-dihydroxy-2,4-dimethylbenzene shows that this is a probable intermediate. Three possible pathways are discussed, namely a triketide origin of xanthofusin, a route via a tetraketide but with loss of the starter unit and, finally, a route including a triketide with a malonate starter unit. © 1995.
Mendeley saves you time finding and organizing research
Choose a citation style from the tabs below