Abstract
Total syntheses of the title natural products, pseudopyronines A (1) and B (2), have been achieved using methyl b-oxo carboxylic ester starting
materials. The natural products and a small set of structurally related compounds were evaluated for growth inhibitory activity against a range
of pathogenic microorganisms and were found to exhibit good potency (IC500.46 mg/mL) and selectivity towards Leishmania donovani.
Several of the compounds inhibited recombinant fatty acid biosynthesis enzymes from both Plasmodium falciparum and Mycobacterium
tuberculosis, validating these targets in the search for new anti-infective agents.
2007 Elsevier Ltd. All rights reserved.