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- W2017113568 abstract "A series of acyclic nucleoside analogues of 5'-O-tritylthymidine have been synthesized and evaluated as potential human mitochondrial thymidine kinase (TK-2) inhibitors. In this series, the sugar moiety of the parent 5'-O-tritylthymidine has been replaced by aliphatic chains including (E)- and (Z)-butenol, butynol, or butanol. Among them the (Z)-butenyl derivative (10) showed an IC(50) against TK-2 of 1.5 microM, being 1 order of magnitude more potent than the parent 5'-O-tritylthymidine. This lead compound has been further modified by replacing the thymine base by other pyrimidine bases such as 5-iodouracil, 5-ethyluracil, 5-methylcytosine, 3-N-methylthymine, or 5,6-dihydrothymine, as well as by the purine base guanine. The trityl group has also been replaced by different aliphatic and aromatic acyl moieties including tert-butylacetyl, hexanoyl, decanoyl, and diphenylacetyl moieties. The evaluation of the compounds against TK-2 and the phylogenetically close HSV-1 TK has shown that the base moiety plays a crucial role in their interaction against these pyrimidine nucleoside kinases. Also, the presence of a lipophilic substituent, preferentially an aromatic moiety such as diphenylmethyl or triphenylmethyl, is required for efficient TK-2 inhibition. Whereas some compounds showed marked specificity for either TK-2 (i.e, the 5,6-dihydrothymine derivative, 26) or HSV-1 TK (i.e., the butynyl derivative, 11), some others, including the (Z)-and (E)-butenyl derivatives 10 and 12, showed significant inhibition against both enzymes. They also proved to be inhibitory against HSV-1 TK in intact human osteosarcoma cells that were transduced with the HSV-1 TK gene." @default.
- W2017113568 created "2016-06-24" @default.
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- W2017113568 date "2002-08-16" @default.
- W2017113568 modified "2023-10-18" @default.
- W2017113568 title "Acyclic Nucleoside Analogues as Novel Inhibitors of Human Mitochondrial Thymidine Kinase" @default.
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- W2017113568 doi "https://doi.org/10.1021/jm011128+" @default.
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