摘要 |
Compounds of the formula I: where; R<SUB>1 </SUB>is O, S; R<SUB>2 </SUB>is an optionally substituted nitrogen-containing heterocycle, wherein the nitrogen is located at the 2 position relative to the (thio)urea bond; R<SUB>3 </SUB>is H, C<SUB>1</SUB>-C<SUB>3 </SUB>alkyl, R<SUB>4</SUB>-R<SUB>7 </SUB>are independently selected from H, C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkenyl, C<SUB>2</SUB>-C<SUB>6 </SUB>alkynyl, haloC<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, C<SUB>1</SUB>-C<SUB>6 </SUB>alkanoyl, haloC<SUB>1</SUB>-C<SUB>6 </SUB>alkanoyl, C<SUB>1</SUB>-C<SUB>6 </SUB>alkoxy, haloC<SUB>1</SUB>-C<SUB>6 </SUB>alkoxy, C<SUB>1</SUB>-C<SUB>6 </SUB>alkyloxy-C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, haloC<SUB>1</SUB>-C<SUB>6 </SUB>alkyloxy-C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl hydroxy-C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, amino-C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, carboxy-C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, cyano-C<SUB>1</SUB>-C<SUB>6 </SUB>alkyl, amino, carboxy, carbamoyl, cyano, halo, hydroxy, keto; X is -(CH<SUB>2</SUB>)<SUB>n-</SUB>-D-(CH<SUB>2</SUB>)<SUB>m</SUB>-; D is -O-, -S-; n and m are independently 0 or 1; and prodrugs and pharmaceutically acceptable salts thereof, have utility as inhibitors of HIV-1 reverse transcriptase, particularly drug escape mutants.
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