| abstract |
The present invention relates to novel nucleoside derivatives of general formula (I) <CHEM> wherein R<1> = H, halogen, NO2, CN, OCH3, an alkyl, alkoxy or alkoxyalkyl residue having 1 to 4 C atoms, preferably a methyl, ethyl, propyl or butyl residue or an optionally substituted aryl residue or aliphatic acyl residue having 2 to 5 atoms, R<2> to R<7> = H, NO2, CN, OCH3, a branched or unbranched alkyl, alkoxy or alkoxyalkyl residue having 1 to 5 C atoms or an optionally substituted aryl residue or an aliphatic acyl residue having 2 to 5 atoms, X is the group C=O or C=S, Y = S, O, NR', C(R')2, wherein R' is H, or a branched or unbranched alkyl residue having 1 to 5 C atoms or an optionally substituted aryl residue, Z = SO2, OCO, OCS, SCS, and N is a nucleotide. <IMAGE> |