Development of Potent and Selective Pyrazolopyrimidine IRAK4 Inhibitors

Autor: Patrick J. Lupardus, Yongsheng Chen, Naomi S. Rajapaksa, John S. Wai, Kevin DeMent, Edna F. Choo, Brent S. McKenzie, Ross Francis, Joy Drobnick, Hans Brightbill, James R. Kiefer, Willy M. Chang, Chudi Ndubaku, Alberto Gobbi, Antonio G. DiPasquale, Aleksandr Kolesnikov, Jonathan Maher, Jianwen Feng, Claire Emson, Le An, Ali A. Zarrin, Zhiyu Huang, Christine Yu, Yingqing Ran, Marian C. Bryan, Swathi Sujatha-Bhaskar
Rok vydání: 2019
Předmět:
Zdroj: Journal of medicinal chemistry. 62(13)
ISSN: 1520-4804
Popis: A series of pyrazolopyrimidine inhibitors of IRAK4 were developed from a high-throughput screen (HTS). Modification of an HTS hit led to a series of bicyclic heterocycles with improved potency and kinase selectivity but lacking sufficient solubility to progress in vivo. Structure-based drug design, informed by cocrystal structures with the protein and small-molecule crystal structures, yielded a series of dihydrobenzofurans. This semisaturated bicycle provided superior druglike properties while maintaining excellent potency and selectivity. Improved physicochemical properties allowed for progression into in vivo experiments, where lead molecules exhibited low clearance and showed target-based inhibition of IRAK4 signaling in an inflammation-mediated PK/PD mouse model.
Databáze: OpenAIRE