The synthesis of tenofovir and its analogues via asymmetric transfer hydrogenation.

A series of tenofovir analogues with potential antiviral and immunobiologically active compounds were synthesized through an asymmetric transfer hydrogenation reaction from achiral purine derivatives. Up to 97% ee and good to excellent yields were achieved under mild conditions through short reaction steps. The present report suggests an efficient process to acquire tenofovir and its analogues.