The pentaketide hydroxyacyl intermediate in aspyrone biosynthesis in Aspergillus melieus is shown to be the (S)-enantiomer using deuterium-labelled precursors and 2H NMR
Abstract
Following administration of both enantiomers of the pentaketide intermediate in the biosynthesis of aspyrone labelled with deuterium to Aspergillus melieus, it is shown by 2H NMR that only the (S)-isomer is incorporated intact into the natural product.