Bioorg Med Chem Lett. 2010 Sep 1;20(17):5133-8. doi: 10.1016/j.bmcl.2010.07.015. Epub 2010 Jul 29.

Discovery of a novel class of triazolones as checkpoint kinase inhibitors--hit to lead exploration.

Oza V¹, Ashwell S, Brassil P, Breed J, Deng C, Ezhuthachan J, Haye H, Horn C, Janetka J, Lyne P, Newcombe N, Otterbien L, Pass M, Read J, Roswell S, Su M, Toader D, Yu D, Yu Y, Valentine A, Webborn P, White A, Zabludoff S, Zheng X.

Author information

1: AstraZeneca R&D Boston, 35 Gatehouse Drive, Waltham, MA 02451, USA. Vibha.Oza@astrazeneca.com

Abstract

Checkpoint Kinase-1 (Chk1, CHK1, CHEK1) is a Ser/Thr protein kinase that mediates cellular responses to DNA-damage. A novel class of Chk1 inhibitors, triazoloquinolones/triazolones (TZ's) was identified by high throughput screening. The optimization of these hits to provide a lead series is described.