期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 50, 期 16, 页码 3841-3850出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm070336k
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资金
- NCRR NIH HHS [C06 RR 14503-01] Funding Source: Medline
- NCPDCID CDC HHS [1U01 CI 000211-03, 1U01 CI 000362-01] Funding Source: Medline
Plasmodium falciparum lactate dehydrogenase (pfLDH) is a key enzyme for energy generation of malarial parasites and is a potential antimalarial chemotherapeutic target. It is known that the oxamate moiety, a pyruvate analog, alone shows higher inhibition against pfLDH than human LDHs, suggesting that it can be used for the development of selective inhibitors. Oxamic acid derivatives were designed and synthesized. Derivatives 5 and 7 demonstrated activities against pfLDH with IC50 values of 3.13 and 1.75 mu M, respectively, and have 59- and 7-fold selectivity over mammalian LDH, respectively. They also have micromolar range activities against Plasmodium falciparum malate dehydrogenase (pfMDH), which may fill the role of pfLDH when the activity of pfLDH is reduced. Thus, certain members of these oxamic acid derivatives may have dual inhibitory activities against both pfLDH and pfMDH. It is presumed that dual LDH/MDH inhibitors would have enhanced potential as antimalarial drugs.
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