Derivatives of pyrazolopyrimidine compounds represented by Formula I are disclosed:
These pyrazolopyrimidine derivatives and pharmaceutical compositions comprising these derivatives are useful in the treatment of HIV mediated diseases and conditions.
The preparation of lactam 2fromR-(-)-phenylglycinol and N-Boc glycine is described. Diastereoselective alkylation of 2 allowed the preparation of piperazine derivatives in an optically pure form.