Phosphonate nucleoside analogs

摘要

Provided are compounds of the following formulae: A phosphonomethoxymethyoxymethyl purine/pyrimidine derivative of the formula <IMAGE> wherein X and X' are the same or different and are hydrogen or alkyl. R and R' are the same or different and are hydrogen, alkyl, hydroxyalkyl or alkanoyl and B is a purine or pyrimidine base. A 4'-phosphonomethoxytetrahydrofuranyl-1'-purine-pyrimidine of the formula <IMAGE> wherein X and X' are the same or different and are hydrogen or alkyl, Y and Z are the same or different and are hydrogen, hydroxyl or alkyl or Y+Z is an alkenyl, an epoxide or cyclopropyl, and B is a purine or pyrimidine base.