| abstract |
The present invention is directed to compounds of formula (I) wherein R1, R2 and R3 are independently selected from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, aryl and heteroaryl and Xl and X2 are independently a bond or an linker group of 1 to 6 atoms and may be optional substituted or oxidized, or a prodrug, a pharmaceutically acceptable salt or a pharmaceutically active metabolite thereof. The invention is also directed to methods of using the same for treating HIV infections, or AIDS or preventing viral replication. |