Click Chemistry-Based Two-Component System for Efficient Inhibition of Human Immunodeficiency Virus (HIV) Reverse Transcriptase (RT)

[Image: see text] We synthesized two dTTP analogues for copper-free “click” chemistry-coupling in the active sites of DNA polymerases. We found that in the presence of both analogues, human immunodeficiency virus (HIV) reverse transcriptase (RT) activity was suppressed by up to 93%. This inhibitory effect was not recovered by an excess amount of primer–template unlike that for a conventional HIV RT inhibitor, azidothymidine. This finding may become the basis for the development of efficient in vivo inhibitors of HIV RT and other DNA polymerases.