Synthesis and Evaluation of α-Thymidine Analogues as Novel Antimalarials

被引:35
作者
Cui, Huaqing [1 ,2 ]
Carrero-Lerida, Juana [2 ]
Silva, Ana P. G. [3 ]
Whittingham, Jean L. [3 ]
Brannigan, James A. [3 ]
Ruiz-Perez, Luis M. [2 ]
Read, Kevin D. [1 ]
Wilson, Keith S. [3 ]
Gonzalez-Pacanowska, Dolores [2 ]
Gilbert, Ian H. [1 ]
机构
[1] Univ Dundee, Sir James Black Ctr, Coll Life Sci, Div Biol Chem & Drug Discovery, Dundee DD1 5EH, Scotland
[2] CSIC, Inst Parasitol & Biomed Lopez Neyra, Granada 18100, Spain
[3] Univ York, Dept Chem, Struct Biol Lab, York YO10 5DD, N Yorkshire, England
基金
英国惠康基金;
关键词
MYCOBACTERIUM-TUBERCULOSIS; EFFICIENT PHOSPHORYLATION; MONOPHOSPHATE KINASE; NUCLEOSIDE ANALOGS; STRUCTURAL BASIS; BETA-THYMIDINE; HUMAN MALARIA; INHIBITORS; PURINE;
D O I
10.1021/jm301328h
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Plasmodium falciparum thymidylate kinase (PfTMPK) is a key enzyme in pyrimidine nucleotide biosynthesis. 3-Trifluoromethyl-4-chloro-phenyl-urea-alpha-thymidine has been reported as an inhibitor of Mycobacterium tuberculosis TMPK (MtTMPK). Starting from this point, we designed, synthesized and evaluated a number of thymidine analogues as antimalarials. Both 5'-urea-alpha- and beta-thymidine derivatives were moderate inhibitors of PfTMPK and furthermore showed moderate inhibition of parasite growth. The structure of several enzyme inhibitor complexes provides a basis for improved inhibitor design. However, we found that certain 5'-urea-alpha-thymidine analogues had antimalarial activity where inhibition of PfTMPK is not the major mode of action. Optimization of this series resulted in a compound with potent antimalarial activity (EC50 = 28 nM; CC50 = 29 mu M).
引用
收藏
页码:10948 / 10957
页数:10
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