Lactic acid-catalyzed fusion of ninhydrin and enamines for the solvent-free synthesis of hexahydroindeno[1,2-<i>b</i>]indole-9,10-diones
作者:Xuwen Chen、Yunyun Liu
DOI:10.1515/hc-2016-0048
日期:2016.6.1
Abstract
The lactic acid-catalyzed reactions of ninhydrin and secondary enaminones were conducted by solvent-free grinding at room temperature to yield polycyclic 4b,9b-dihydroxy-4b,5,6,7,8,9b-hexahydroindeno[1,2-b]indole-9,10-diones.
Indeno[1,2-b]indole derivatives as a novel class of potent human protein kinase CK2 inhibitors
作者:Claas Hundsdörfer、Hans-Jörg Hemmerling、Claudia Götz、Frank Totzke、Patrick Bednarski、Marc Le Borgne、Joachim Jose
DOI:10.1016/j.bmc.2012.02.017
日期:2012.4
Herein we describe the synthesis and properties of indeno[1,2-b]indole derivatives as a novel class of potent inhibitors of the human protein kinase CK2. A set of 19 compounds was obtained using a convenient and straightforward synthesis protocol. The compounds were tested for inhibition of human protein kinase CK2, which was recombinantly expressed in Escherichia coli. New inhibitors with IC50 in the micro-
在这里,我们描述了茚并[1,2- b ]吲哚衍生物的合成及其性质,它们是一类新型的人类蛋白激酶CK2的有效抑制剂。使用方便和直接的合成方案获得了一组19种化合物。测试了化合物对在大肠杆菌中重组表达的人蛋白激酶CK2的抑制作用。鉴定出IC 50在微摩尔和亚微摩尔范围内的新抑制剂。化合物4b(5-异丙基-7,8-二氢茚并[1,2- b ]吲哚-9,10(5 H,6 H)-二酮)抑制人CK2的IC 50浓度为0.11μM,并且没有显着抑制22种其他人类蛋白激酶,表明对CK2具有选择性。显示了化合物4b对ATP的竞争抑制作用,确定的K i为0.06μM。我们的发现表明,茚并[1,2- b ]吲哚是进一步开发和优化人类蛋白激酶CK2抑制剂的有希望的起点。
Novel indeno[1,2-b]indoloquinones as inhibitors of the human protein kinase CK2 with antiproliferative activity towards a broad panel of cancer cell lines
作者:Claas Hundsdörfer、Hans-Jörg Hemmerling、Janina Hamberger、Marc Le Borgne、Patrick Bednarski、Claudia Götz、Frank Totzke、Joachim Jose
DOI:10.1016/j.bbrc.2012.06.068
日期:2012.7
We previously reported indeno[1,2-b]indoles as a novel class of potent inhibitors of the human protein kinase CK2. In the present study we prepared two novel quinoid derivatives, the indeno[1,2-b]indoloquinones 6b and 6c, and demonstrated inhibition of the human CK2 by the compounds. Furthermore, we showed substantial antiproliferative activity of both compounds towards a broad panel of human cancer cell lines in the low micromolar range. Whereas the earlier indeno[1,2-b]indoles have been shown to be selective for CK2, the indeno[1,2-b]indoloquinones 6b and 6c also inhibited the AMPK activated protein kinase ARK5, potentially contributing to the anti-cancer effects of the compounds. In addition, with compound 6b we found a very potent inhibitor of the leukemia-associated receptor tyrosine kinase FLT3, with an IC50 of 0.18 mu M. (C) 2012 Elsevier Inc. All rights reserved.