Furo[3,2-b]pyridine: A Privileged Scaffold for Highly Selective Kinase Inhibitors and Effective Modulators of the Hedgehog Pathway.Nemec, V., Hylsova, M., Maier, L., Flegel, J., Sievers, S., Ziegler, S., Schroder, M., Berger, B.T., Chaikuad, A., Valcikova, B., Uldrijan, S., Drapela, S., Soucek, K., Waldmann, H., Knapp, S., Paruch, K.
(2019) Angew Chem Int Ed Engl 58: 1062-1066
- PubMed: 30569600
- DOI: https://doi.org/10.1002/anie.201810312
- Primary Citation of Related Structures:
6I5H, 6I5I, 6I5K, 6I5L
- PubMed Abstract:
Reported is the identification of the furo[3,2-b]pyridine core as a novel scaffold for potent and highly selective inhibitors of cdc-like kinases (CLKs) and efficient modulators of the Hedgehog signaling pathway. Initially, a diverse target compound set was prepared by synthetic sequences based on chemoselective metal-mediated couplings, including assembly of the furo[3,2-b]pyridine scaffold by copper-mediated oxidative cyclization. Optimization of the subseries containing 3,5-disubstituted furo[3,2-b]pyridines afforded potent, cell-active, and highly selective inhibitors of CLKs. Profiling of the kinase-inactive subset of 3,5,7-trisubstituted furo[3,2-b]pyridines revealed sub-micromolar modulators of the Hedgehog pathway.
International Clinical Research Centre, St. Anne's University Hospital, Pekařská 53, Brno, 656 91, Czech Republic.