| abstract |
Chemical compounds comprising nucleoside phosphoramides, their preparation and their therapeutic use in treating viral infections, particularly HIV and HBV are disclosed. The compounds contain a substituted adenine analogue moiety comprising 2-amino-6-(cyclopropylamino)-9H-purin-9-yl. The compounds show both anti-viral activity and acid stability. Salts and esters of the phosphoramidates are included. A representative compound is (1S, 4R), -4-[2-amino-6-(cyclopropylamino)-9H-purin-9-yl]-2-cyclopentene-1-methanol1 O-[phenyl-(methoxy-L-alaninyl)]-phosphate. |