Inhibition of FLT3 and PDGFR tyrosine kinase activity by bis(benzo[b]furan-2-yl)methanones
作者:Siavosh Mahboobi、Andrea Uecker、Christophe Cénac、Andreas Sellmer、Emerich Eichhorn、Sigurd Elz、Frank-D. Böhmer、Stefan Dove
DOI:10.1016/j.bmc.2006.12.011
日期:2007.3
which was strongest in the case of the 5,5'-dimethoxy derivative. The 5,5'-diamino and the 6,6'-dihydroxy compounds are more active at FLT3. At both kinases, the potency of the best inhibitors approaches IC50 values of ca. 0.5 microM. Molecular modeling studies suggest that the bisbenzofuranylmethanones are able to fit into the same binding site as their indolyl analogues which have been suggested to
合成了一系列的双(苯并[b]呋喃-2-基)甲酮,并测试了其对FLT3和PDGFR自磷酸化的抑制作用。通常,C-5取代会导致PDGFR选择性,在5,5'-二甲氧基衍生物的情况下,PDGFR的选择性最强。5,5'-二氨基和6,6'-二羟基化合物在FLT3上更具活性。在这两种激酶中,最好的抑制剂的效价都接近约50的IC50值。0.5微米 分子模型研究表明,双苯并呋喃基甲烷能够与其吲哚基类似物结合在相同的结合位点,而吲哚基类似物已被建议与铰链区的主链形成双齿氢桥。NH-O交换导致的一个H键的损失可能会被例如一个呋喃基氧与FLT3 Cys-828的弱相互作用部分补偿。