Novel Inhibitors of the v-raf Murine Sarcoma Viral Oncogene Homologue B1 (BRAF) Based on a 2,6-Disubstituted Pyrazine Scaffold
作者:Ion Niculescu-Duvaz、Esteban Roman、Steven R. Whittaker、Frank Friedlos、Ruth Kirk、Ian J. Scanlon、Lawrence C. Davies、Dan Niculescu-Duvaz、Richard Marais、Caroline J. Springer
DOI:10.1021/jm070776b
日期:2008.6.1
developing inhibitors of mutant (V600E)BRAF. We have already reported on the optimization of the trimethoxyphenylamino moiety of 1. In this paper, we describe the synthesis of a series of compounds derived from 1 with the purpose of optimization of the pyrazine central core and the phenylacetamido moiety in order to increase the potency against (V600E)BRAF compared to CRAF. The biological activity of the new
BRAF是一种丝氨酸/苏氨酸激酶,在某些类型的癌症(尤其是黑色素瘤)的发生中起关键作用。从23000的库的高通量筛选中,将2-(3,4,5-三甲氧基苯基氨基)-6-(3-乙酰氨基苯基)-吡嗪确定为低微摩尔(IC 50 = 3.5 microM)BRAF抑制剂化合物。选择该化合物作为开发突变体(V600E)BRAF抑制剂的程序的起点。我们已经报道了1的三甲氧基苯基氨基部分的优化。在本文中,我们描述了一系列衍生自1的化合物的合成,目的是优化吡嗪中心核和苯基乙酰胺基部分,以提高效力。针对(V600E)BRAF与CRAF的比较。在体外评估了新抑制剂对突变型(V600E)BRAF的生物学活性。鉴定出几种化合物,其(V600E)BRAF的IC 50为300-500 nM,所有评估的化合物与CRAF相比,对(V600E)BRAF的选择性高5-> 86倍。