| abstract |
Ipoxantine derivatives of general formula (I): <CHEM> both as racemate and chiral forms and the salts thereof with pharmacologically acceptable cations, wherein n is an integer comprised between 2 and 6, and A is the residue of a dipeptide, tripeptide, tetrapeptide and pentapeptide selected, respectively, from the groups consisting of: (a) glycyl-aspartate, alanyl-glycine, glycyl-glycine, aspartyl-arginine, leucyl-arginine; (b) arginyl-lysyl-aspartate, aspartyl-lysyl-arginine, lysyl-prolyl-arginine, prolyl-prolyl-arginine, lysyl-histidyl-glycinamide, prolyl-phenilalanyl-arginine, phenylalanyl-prolyl-arginine; (c) arginyl-lysyl-aspartyl-valine, valyl-aspartyl-lysyl-arginine, threonylvalyl-leucyl-histidyne; and (d) arginyl-lysyl-aspartyl-valyl-tyrosine; are endowed with immunomodulating activity and can be formulated in orally or parenterally administrable pharmaceutical compositions. i |