Abstract
Chalcones are a group of naturally occurring or synthetic compounds which possess a wide range of biological activities. In this paper, a series of twenty-three 7-azaindole-chalcone hybrids (5a-w) were synthesized and evaluated as potential protein kinase inhibitors. Analyses of structure-activity relationships revealed that some of these compounds exhibit significant activity against Haspin kinase, with compounds 5f and 5q exhibiting IC50 values of 0.47 and 0.41µM, respectively. Furthermore, 5f also inhibits cyclin-dependent kinase 9 (CDK9/CyclinT) in a micromolar potency (IC50 =2.26µM). This novel dual-target inhibitor is a promising lead for the development of chemopreventive/chemotherapeutic agents.
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