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netLibrary - eBook Summary Structure-based Drug Design by ...

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dine (3TC), and 2',3'-didehydro-2',3'-dideoxythymidine (d4T), have been widely used in the treatment of<br />

HIV-1 infections [5–7]. However, the effectiveness of these drugs is limited <strong>by</strong> their cytotoxicity and the<br />

rapid emergence of drug-resistant viral strains [5,8–12]. Nonnucleoside inhibitors, e.g., the HEPT<br />

derivatives [13], TIBO derivatives [14], nevirapine [15], pyridinones [16], BHAP derivatives [17], TBA<br />

derivatives [18,19], TSAO derivatives [20], α-APA [21], and quinoxalines (HBY) [22,23], are potent<br />

inhibitors of HIV-1 RT (see reviews [5,11,12]). While these inhibitors differ considerably in chemical<br />

structure, all of them are quite specific for HIV-1 RT and inhibit neither HIV-2 RT nor variety of<br />

cellular polymerases. Challenging a virus with these drugs<br />

http://legacy.netlibrary.com/nlreader/nlReader.dll?bookid=12640&filename=Page_43.html (2 of 2) [4/5/2004 4:47:21 PM]

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