Article

Synthesis, immunosuppressive activity and structure-activity relationship study of a new series of 4-N-piperazinyl-thieno[2,3-d]pyrimidine analogues.

Catholic University of Leuven, Rega Institute, Laboratory of Medicinal Chemistry, Minderbroedersstraat 10, 3000 Leuven, Belgium.
Bioorganic & medicinal chemistry letters (Impact Factor: 2.65). 02/2010; 20(3):844-7. DOI: 10.1016/j.bmcl.2009.12.098
Source: PubMed

ABSTRACT The synthesis of a new series of 4-N-piperazinyl-thieno[2,3-d]pyrimidines is described. The synthetic route allows introducing structural variety at positions 2, 4 and 6 of the scaffold. Evaluation of their immunosuppressive activity in a Mixed Lymphocyte Reaction (MLR) assay revealed that the most potent compound has an IC(50)-value of 66 nM and therefore deserves attention for further medicinal chemistry optimization.

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