Identification of 4-(4-Aminopiperidin-1-Yl)-7H-Pyrrolo[2,3-D]Pyrimidines as Selective Inhibitors of Protein Kinase B Through Fragment Elaboration.
Caldwell, J.J., Davies, T.G., Donald, A., Mchardy, T., Rowlands, M.G., Aherne, G.W., Hunter, L.K., Taylor, K., Ruddle, R., Raynaud, F.I., Verdonk, M., Workman, P., Garrett, M.D., Collins, I.(2008) J Med Chem 51: 2147
- PubMed: 18345609 
- DOI: 10.1021/jm701437d
- Primary Citation of Related Structures:  
2VNW, 2VNY, 2VO0, 2VO3, 2VO6, 2VO7 - PubMed Abstract: 
Fragment-based screening identified 7-azaindole as a protein kinase B inhibitor scaffold. Fragment elaboration using iterative crystallography of inhibitor-PKA-PKB chimera complexes efficiently guided improvements in the potency and selectivity of the compounds, resulting in the identification of nanomolar 6-(piperidin-1-yl)purine, 4-(piperidin-1-yl)-7-azaindole, and 4-(piperidin-1-yl)pyrrolo[2,3- d]pyrimidine inhibitors of PKBbeta with antiproliferative activity and showing pathway inhibition in cells ...