Patent ID: 7183296

Claim:
A method for the treatment of human immunodeficiency virus (HIV) infection comprising administering a therapeutically effective amount of a compound of the formula wherein R 1 is optionally substituted C 1-12 -alkyl, C 3-8 -cycloalkyl, acyl, C 1-4 -alkylsulfonyl, optionally substituted phenylsulfonyl, aryl, heterocyclyl or C 1-4 -alkyl substituted with optionally substituted phenyl; R 2 is aryl; R 3 is C 1-12 -alkyl or C 1-4 -alkoxy-C 1-4 -alkyl; A is a group selected from CH 2 -(aryl-C 1-4 -alkylamino), CH 2 -(aryl-C 1-4 -alkoxy), CH 2 -(heterocyclyl-C 1-4 -alkoxy), C 1-4 -alkyl substituted with aryl or with heterocyclyl; or A is a group of formula CH 2 -U-heterocyclyl, wherein U is O, S or NR″, wherein R″ is hydrogen or C 1-4 -alkyl; or A is a group of formula CH(V)Z, wherein V is OH or F, and wherein Z is aryl or heterocyclyl; or A is a group of formula CH═CHW, wherein W is aryl or heterocyclyl; X is S or O; or the pharmaceutically acceptable hydrolyzable esters or ethers thereof, or the pharmaceutically acceptable salts thereof.