| abstract |
Compounds of the formulan wherein R¹ is OH, NH₂; R² is a heteroaromatic or aromatic substituent as defined in claim 1; R³ is H, OH, F, OCH₃; R⁴ is H, F, OH or an ether or ester residue thereof, OCH₃, CN, C≡CH, N₃; R⁵ is OH or an ether or ester residue thereof including mono-, di- and triphosphate esters;n wherein n is O or 1 and M is hydrogen or a pharmaceutically acceptable counterion such as sodium, potassium, ammonium or alkylammonium; and pharmaceutically acceptable salts thereof; and pharmaceutical compositions comprising said compounds can be used for therapeutic and/or prophylactic treatment of virus infections such as AIDS. n Compounds of the formulan wherein R¹ and R² are as defined above, are new precursor compounds. |