PMID: 19914068

Authors:

Guckian K, Carter MB, Lin EY, Choi M, Sun L, Boriack-Sjodin PA, Chuaqui C, Lane B, Cheung K, Ling L, Lee WC

Title:

Pyrazolone based TGFbetaR1 kinase inhibitors.

Journal:

Bioorg Med Chem Lett. 2010 Jan 1;20(1):326-9. Epub 2009 Oct 29.

Abstract:

Interruption of TGFbeta signaling through inhibition of the TGFbetaR1 kinase domain may prove to have beneficial effect in both fibrotic and oncological diseases. Herein we describe the SAR of a novel series of TGFbetaR1 kinase inhibitors containing a pyrazolone core. Most TGFbetaR1 kinase inhibitors described to date contain a core five-membered ring bearing N as H-bond acceptor. Described herein is a novel strategy to replace the core structure with pyrazolone ring, in which the carbonyl group is designed as an H-bond acceptor to interact with catalytic Lys 232.