[EN] INDIRUBIN-3'-OXIME DERIVATIVES AS POTENT CYCLIN DEPENDENT KINASE INHIBITORS [FR] DÉRIVÉS DE L'INDIRUBIN-3'-OXIME EN TANT QU'INHIBITEURS PUISSANTS DE KINASES DÉPENDANTES DE CYCLINES
To enhance the ability of indirubin derivatives to inhibit CDK2/cyclin E, a target of anticancer agents, we designed and synthesized a new series of indirubin-3'-oxime derivatives with combined substitutions at the 5 and 5' positions. A molecular docking study predicted the binding of derivatives with OH or halogen substitutions at the 5' position to the ATP binding site of CDK2, revealing the critical interactions that may explain the improved CDK2 inhibitory activity of these derivatives. Among the synthesized derivatives, the 5-nitro-5'-hydroxy analogue 3a and the 5-nitro-5'-fluoro analogue Sa displayed potent inhibitory activity against CDK2, with IC(50) values of 1.9 and 1.7 nM, respectively. These derivatives also showed antiproliferative activity against several human cancer cell lines, with IC(50) values of 0.2-3.3 mu M. A representative analogue, 3a, showed greater than 500-fold selectivity for CDK relative to selected kinase panel and potent in vivo anticancer activity.
US8859783B2
申请人:——
公开号:US8859783B2
公开(公告)日:2014-10-14
INDIRUBIN-3'-OXIME DERIVATIVES AS POTENT CYCLIN DEPENDENT KINASE INHIBITORS
申请人:Kim Yong-Chul
公开号:US20120295948A1
公开(公告)日:2012-11-22
The present invention relates to an indirubin-3′-oxime derivative as potent cyclin dependent kinase inhibitor with anti-cancer activity. More particularly, this invention relates to an indirubin-3′-oxime derivative as potent cyclin dependent kinase inhibitor having excellent anti-cancer activity against human lung cancer cell, human fibro sarcoma cell, human colon cancer cell, human leukemia cell, human stomach cancer cell, human nasopharyngeal cancer cell and/or human breast cancer cell.
[EN] INDIRUBIN-3'-OXIME DERIVATIVES AS POTENT CYCLIN DEPENDENT KINASE INHIBITORS<br/>[FR] DÉRIVÉS DE L'INDIRUBIN-3'-OXIME EN TANT QU'INHIBITEURS PUISSANTS DE KINASES DÉPENDANTES DE CYCLINES