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Bioorg Med Chem Lett. 2009 Feb 1;19(3):908-11. doi: 10.1016/j.bmcl.2008.11.105. Epub 2008 Dec 6.

2-(6-Phenyl-1H-indazol-3-yl)-1H-benzo[d]imidazoles: design and synthesis of a potent and isoform selective PKC-zeta inhibitor.

Author information

1
Department of Medicinal Chemistry, Pfizer Global Research and Development, 700 Chesterfield Pkwy, AA236, Chesterfield, MO 63017, USA. john.i.trujillo@pfizer.com

Abstract

The inhibition of PKC-zeta has been proposed to be a potential drug target for immune and inflammatory diseases. A series of 2-(6-phenyl-1H indazol-3-yl)-1H-benzo[d]imidazoles with initial high crossover to CDK-2 has been optimized to afford potent and selective inhibitors of protein kinase c-zeta (PKC-zeta). The determination of the crystal structures of key inhibitor:CDK-2 complexes informed the design and analysis of the series. The most selective and potent analog was identified by variation of the aryl substituent at the 6-position of the indazole template to give a 4-NH(2) derivative. The analog displays good selectivity over other PKC isoforms (alpha, betaII, gamma, delta, epsilon, mu, theta, eta and iota/lambda) and CDK-2, however it displays marginal selectivity against a panel of other kinases (37 profiled).

PMID:
19097791
DOI:
10.1016/j.bmcl.2008.11.105
[Indexed for MEDLINE]

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