Design, modification and 3D QSAR studies of novel 2,3-dihydrobenzo[b][1,4]dioxin-containing 4,5-dihydro-1H-pyrazole derivatives as inhibitors of B-Raf kinase
作者:Yu-Shun Yang、Qing-Shan Li、Shuai Sun、Yan-Bin Zhang、Xiao-Liang Wang、Fei Zhang、Jian-Feng Tang、Hai-Liang Zhu
DOI:10.1016/j.bmc.2012.08.043
日期:2012.10
Two series of novel 2,3-dihydrobenzo[b][1,4]dioxin-containing 4,5-dihydro-1H-pyrazole derivatives C1–C15 and D1–D15 have been synthesized and evaluated for their B-Raf inhibitory and anti-proliferation activities. Compound C14 ((3-(4-bromophenyl)-5-(2-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)methanone) showed the most potent biological activity against B-RafV600E
合成了两个系列的新型含2,3-二氢苯并[ b ] [1,4]二恶英的4,5-二氢-1 H-吡唑衍生物C1 - C15和D1 - D15,并评估了它们对B-Raf的抑制作用和防扩散活动。化合物C14((3-(4-溴苯基)-5-(2-氟苯基)-4,5-二氢-1 H-吡唑-1-基)(2,3-二氢苯并[ b ] [1,4]二恶英-6-yl)methanone)对B-Raf V600E(IC 50 = 0.11μM)和WM266.4人黑素瘤细胞系(GI 50 = 0.58μM),与阳性对照厄洛替尼相当,并且比我们以前最好的化合物更有效,而D10((2,3-dihydrobenzo [ b ] [1,4] dioxin-2-yl)(5-(3-氟苯基)-3-苯基-4,5-二氢-1 H-吡唑-1-基)甲酮在D系列中表现最好(IC 50 = 1.70μM; GI 50 = 1.45μM)。进行了对接模