Abstract: Compounds of formula (I): wherein Ar, X, R1, R2, R3 and R4 are as defined herein. The compounds are useful as reverse transcriptase inhibitors against wild type and single or double mutant strains of HIV.

Abstract: An enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein A, B, R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are as defined herein, or a salt or ester thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: Compounds of formula I: wherein X, R2, R3, R5 and R6 are defined herein, are useful as inhibitors of the hepatitis C virus NS5B polymerase.

Abstract: Compounds of formula I: wherein X, R2, R3, R5 and R6 are defined herein, are useful as inhibitors of the hepatitis C virus NS5B polymerase.

Abstract: An enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein A, B, R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are as defined herein, or a salt or ester thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: An enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein A, B, R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are as defined herein, or a salt or ester thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: Compounds of formula I: wherein, R2, R5 and R6 are defined herein, are useful as inhibitors of the hepatitis C virus NS5B polymerase.

Abstract: Compounds of formula I: wherein X, R2, R3, R5 and R6 are defined herein, are useful as inhibitors of the hepatitis C virus NS5B polymerase.

Abstract: Disclosed herein are compounds of formula Ar1—X—W—Ar2 wherein Ar1 and Ar2 represent aryl groups characterized generally as aromatic heterocycles (e.g. imidazolyl or tetrazolyl) or carbocycles (e.g. phenyl or naphthalenyl); the aryl groups are optionally substituted or fused with other heterocycles or carbocycles; the aryl groups can bear substituents such as alkyl, halo or O-alkyl. X is a heteroatom, a valence bond or an optionally substituted divalent methylene, and W represents a spacer; typical spacers include divalent alkylene or alkylene-amido, -amido or -oxy radicals, which may optionally be substituted (e.g. hydroxyl or oxo). A typical compound is a derivative of 2-(N-napthalenyltetrazolylthio)-N-(2-nitrophenyl)acetamide. The compounds have inhibitory activity against Wild Type and single or double mutant strains of HIV.

Abstract: An enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein A, B, R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are as defined herein, or a salt or ester thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: An enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein A, B, R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are as defined herein, or a salt or ester thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: Compounds of formula (I): wherein Ar, X, R1, R2, R3 and R4 are as defined herein. The compounds are useful as reverse transcriptase inhibitors against wild type and single or double mutant strains of HIV.

Abstract: Compounds of formula (I): wherein Ar, X, R1, R2, R3 and R4 are as defined herein. The compounds are useful as reverse transcriptase inhibitors against wild type and single or double mutant strains of HIV.

Abstract: Compounds of formula I: wherein X, R2, R3, R5 and R6 are defined herein, are useful as inhibitors of the hepatitis C virus NS5B polymerase.

Abstract: A compound, represented by formula (I): wherein A, B, R1, R2, R3, R5, R6, R7, R9, and R10 are as defined herein, or an enantiomer, diastereoisomer or tautomer thereof, including a salt, ester or derivative thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: Compounds of formula I: wherein X, R2, R3, R5 and R6 are defined herein, are useful as inhibitors of the hepatitis C virus NS5B polymerase.

Abstract: A compound, represented by formula (I): wherein A, B, R1, R2, R3, R5, R6, R7, R9, and R10 are as defined herein, or an enantiomer, diastereoisomer or tautomer thereof, including a salt, ester or derivative thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: Compounds represented by formula I: wherein R1 is H, halogen, (C1-4)alkyl, O(C1-4)alkyl, and haloalkyl; R2 is H or (C1-4)alkyl; R3 is H or (C1-4)alkyl; R4 is (C1-4)alkyl, (C1-4)alkyl(C3-7)cycloalkyl, or (C3-7)cycloalkyl; and Q is a fused phenyl-5 or 6-membered saturated heterocycle having one to two heteroatoms selected from O and N, said Q being optionally substituted with hydroxy, or (C1-4)alkyl which in turn maybe optionally substituted with pyridinyl-N-oxide or C(O)OR wherein R is H or (C1-4)alkyl; or a salt thereof. The compounds have inhibitory activity against Wild Type, and single and double mutants strains, of HIV.

Abstract: A compound, represented by formula (I): wherein A, B, R1, R2, R3, R5, R6, R7, R9, and R10 are as defined herein, or an enantiomer, diastereoisomer or tautomer thereof, including a salt, ester or derivative thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: Compounds of formula (I): wherein Ar, X, R1, R2, R3 and R4 are as defined herein. The compounds are useful as reverse transcriptase inhibitors against wild type and single or double mutant strains of HIV.