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
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 (IC50= 0.11 ...