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Exploring Kinase Inhibition Properties of 9 H -pyrimido[5,4- b ]- and [4,5- b ]indol-4-amine Derivatives.
- Source :
-
Pharmaceuticals (Basel, Switzerland) [Pharmaceuticals (Basel)] 2020 May 09; Vol. 13 (5). Date of Electronic Publication: 2020 May 09. - Publication Year :
- 2020
-
Abstract
- We previously highlighted the interest in 6,5,6-fused tricyclic analogues of 4-aminoquinazolines as kinase inhibitors in the micromolar to the nanomolar range of IC <subscript>50</subscript> values. For the generation of chemical libraries, the formamide-mediated cyclization of the cyanoamidine precursors was carried out under microwave irradiation in an eco-friendly approach. In order to explore more in-depth the pharmacological interest in such tricyclic skeletons, the central five member ring, i.e., thiophène or furan, was replaced by a pyrrole to afford 9H-pyrimido[5,4-b]- and [4,5-b]indol-4-amine derivatives inspired from harmine. The inhibitory potency of the final products was determined against four protein kinases (CDK5/p25, CK1/ε, GSK3 and DYRK1A). As a result, we have identified promising compounds targeting CK1/ε and DYRK1A and displaying micromolar and submicromolar IC <subscript>50</subscript> values.<br />Competing Interests: The authors declare no conflict of interest. The founding sponsors had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.
Details
- Language :
- English
- ISSN :
- 1424-8247
- Volume :
- 13
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Pharmaceuticals (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 32397570
- Full Text :
- https://doi.org/10.3390/ph13050089