A new structural type of kinase inhibitor. containing a benzocarbazole nucl
eus, has been identified. Members of the series are selective for inhibitio
n of the cyclin dependent kinase family of enzymes. Although the cdks are h
ighly homologous, representatives of the series showed intra-cdk selectivit
ies, especially for cdk4. SAR studies elucidated the important features of
the molecules for inhibition. (C) 2001 DuPont Pharmaceuticals Company. Publ
ished by Elsevier Science Ltd. All rights reserved.