3,3a-Dihydropyrano[4,3,2-de]quinazolin-2(1H)-ones are potent non-nucleoside reverse transcriptase inhibitors
A series of unique 3,3a-dihydropyrano[4,3,2-de]quinazolin-2(1H)-ones and a 2a,5-dihydro-2H-thieno[4,3,2,-de]-quinazoline-4(3H)-thione were found to be HIV-1 non-nucleoside reverse transcriptase inhibitors. One of these compounds, as the racemate, possessed an IC90=4.6 nM against wild-type virus in a whole cell antiviral assay and had an IC90=76 and 897 nM against the clinically significant K103N and K103N/L100I mutant viruses, respectively.
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Acknowledgements
We thank Will Marshal of DuPont Central Research & Development Department for X-ray crystallography determinations and Carolyn Weigelt for assistance with the molecular modeling.
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