- Furo[3,2-b]pyridine: A Privileged Scaffold for Highly Selective Kinase Inhibitors and Effective Modulators of the Hedgehog Pathway.
Furo[3,2-b]pyridine: A Privileged Scaffold for Highly Selective Kinase Inhibitors and Effective Modulators of the Hedgehog Pathway.
Angewandte Chemie (International ed. in English) (2018-12-21)
Václav Němec, Michaela Hylsová, Lukáš Maier, Jana Flegel, Sonja Sievers, Slava Ziegler, Martin Schröder, Benedict-Tilman Berger, Apirat Chaikuad, Barbora Valčíková, Stjepan Uldrijan, Stanislav Drápela, Karel Souček, Herbert Waldmann, Stefan Knapp, Kamil Paruch
PMID30569600
RÉSUMÉ
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.