The identification of potent, selective and CNS penetrant furan-based inhibitors of B-Raf kinase
摘要:
Modification of the potent imidazole-based B-Raf inhibitor SB-590885 resulted in the identification of a series of furan-based derivatives with enhanced CNS penetration. One such compound, SB-699393 (17), was examined in vivo to challenge the hypothesis that selective B-Raf inhibitors may be of value in the treatment of stroke. (c) 2008 Elsevier Ltd. All rights reserved.
Pyridylfurans and pyrroles as Raf kinase inhibitors
申请人:SmithKline Beechum P.L.C.
公开号:US07297694B2
公开(公告)日:2007-11-20
Compounds and their use as pharmaceuticals particularly as Raf kinase inhibitors for the treatment of neurotraumatic diseases, cancer, chronic neurodegeneration, pain, migraine and cardiac hypertrophy.
Compounds and their use as pharmaceuticals particularly as Raf kinase inhibitors for the treatment of neurotraumatic diseases, cancer, chronic neurodegeneration, pain, migraine and cardiac hypertrophy.
Novel tricyclic pyrazole BRAF inhibitors with imidazole or furan central scaffolds
作者:Dan Niculescu-Duvaz、Ion Niculescu-Duvaz、Bart M.J.M. Suijkerbuijk、Delphine Ménard、Alfonso Zambon、Arnaud Nourry、Lawrence Davies、Helen A. Manne、Frank Friedlos、Lesley Ogilvie、Douglas Hedley、Andrew K. Takle、David M. Wilson、Jean-Francois Pons、Tom Coulter、Ruth Kirk、Neus Cantarino、Steven Whittaker、Richard Marais、Caroline J. Springer
DOI:10.1016/j.bmc.2010.06.031
日期:2010.9
V-RAF murine sarcoma viral oncogene homolog B1 (BRAF) is a serine/threonine-specific protein kinase that is mutated with high frequency in cutaneous melanoma, and many other cancers. Inhibition of mutant BRAF is an attractive therapeutic approach for the treatment of melanoma. A triarylimidazole BRAF inhibitor bearing a phenylpyrazole group (dimethyl-[2-(4-5-[4-(1H-pyrazol-3-yl)-phenyl]-4-pyridin- 4-yl-1H-imidazol-2-yl}-phenoxy)-ethyl]-amine, 1a) was identified as an active BRAF inhibitor. Based on this starting point, we synthesized a series of analogues leading to the discovery of 6-2-[4-(4-methylpiperazin- 1-yl)-phenyl]-5-pyridin-4-yl-3H-imidazol-4-yl}-2,4-dihydro-indeno[1,2-c]pyrazole (1j), with nanomolar activity in three assays: inhibition of purified mutant BRAF activity in vitro; inhibition of oncogenic BRAF-driven extracellular regulated kinase (ERK) activation in BRAF mutant melanoma cell lines; and inhibition of proliferation in these cells. (C) 2010 Elsevier Ltd. All rights reserved.