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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Phosphodiester amidates of unsaturated nucleoside analogues: synthesis and anti-HIV activity.

The effect of introduction of a lipophilic phosphodiester amidate moiety on the HIV activity of inactive unsaturated nucleoside analogues was investigated. Phosphodiester alaninates 5a, 5b, and 6 derived from unsaturated nucleoside analogues 3b, 3c, and 4a were synthesized and investigated as inhibitors of cytopathic effect and replication of HIV-1 in ATH-8 cells. Compound 5a is an inhibitor of HIV-1 whereas analogue 6 is inactive with cytotoxicity appearing above 10 microM and 5b is both inactive and nontoxic. Alkaline or enzymic hydrolysis of 5a gave phosphomonoester alaninate 14, a putative product of intracellular metabolism. Compound 14 as well as adenallene derivative 15c were devoid of anti-HIV activity, and they also failed to inhibit HIV reverse transcriptase. A new regioselective method for preparation of (Z)-4-(benzoyloxy)-1-hydroxy-2-butene, 7, a key intermediate for the synthesis of unsaturated nucleoside analogues of cis configuration such as 3a, 3b, and 3c, is also described.[1]


  1. Phosphodiester amidates of unsaturated nucleoside analogues: synthesis and anti-HIV activity. Winter, H., Maeda, Y., Uchida, H., Mitsuya, H., Zemlicka, J. J. Med. Chem. (1997) [Pubmed]
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