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Fragment-Based Discovery of 7-Azabenzimidazoles as Potent, Highly Selective, and Orally Active CDK4/6 Inhibitors

Journal Article · · ACS Medicinal Chemistry Letters
DOI:https://doi.org/10.1021/ml200241a· OSTI ID:1405004

Herein, we describe the discovery of potent and highly selective inhibitors of both CDK4 and CDK6 via structure-guided optimization of a fragment-based screening hit. CDK6 X-ray crystallography and pharmacokinetic data steered efforts in identifying compound 6, which showed >1000-fold selectivity for CDK4 over CDKs 1 and 2 in an enzymatic assay. Furthermore, 6 demonstrated in vivo inhibition of pRb-phosphorylation and oral efficacy in a Jeko-1 mouse xenograft model.

Research Organization:
Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
Sponsoring Organization:
INDUSTRY
OSTI ID:
1405004
Journal Information:
ACS Medicinal Chemistry Letters, Journal Name: ACS Medicinal Chemistry Letters Journal Issue: 6 Vol. 3; ISSN 1948-5875
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
ENGLISH

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