Abstract
With the aim to develop inhibitors of the plasmepsin I and II aspartic proteases of the malaria parasite Plasmodium falciparum, we have synthesized sets of libraries from novel reversed-statine isosteres, using a combination of solution phase and solid phase chemistry. The synthetic strategy furnishes the library compounds in good to high overall yields and with excellent stereochemical control throughout the developed route. The products were evaluated for their plasmepsin I and II inhibiting properties and were found to exhibit modest but promising activity. The best inhibitor exhibits an in vitro activity of 28% inhibition of plasmepsin II at an inhibitor concentration of 0.5 μM ( K i for Plm II=5.4 μM).
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