Synthesis and immunobiological activity of base substituted 2-amino-3-(purin-9-yl)propanoic acid derivatives
Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic. <> Bioorganic & Medicinal Chemistry
(Impact Factor: 2.79).
05/2005; 13(7):2349-54. DOI: 10.1016/j.bmc.2005.01.054
2-Amino-3-(purin-9-yl)propanoic acids substituted at position 6 of the purine base moiety by dimethylamino, cyclopropylamino, pyrrolidin-1-yl, hydroxy, and sulfanyl group as well as their 2-aminopurine analogues were prepared from corresponding 9-(2,2-diethoxyethyl)purines and 2-aminopurines, respectively, by the Strecker synthesis. 2-Aminopropanoic acid derivatives were tested for their immunostimulatory and immunomodulatory potency. Some of these compounds significantly enhanced secretion of chemokines RANTES and MIP-1alpha, the most potent was 2-amino-6-sulfanylpurine derivative. Most of these compounds also augmented NO biosynthesis triggered primarily by IFN-gamma.
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