A new general methodology was developed to access highly enantiomerically enriched 1,4-dihydropyridines (DHPs) 3 via an organocatalytic asymmetric aza-ene-type cascade reaction, cocatalyzed by (S)-diarylprolinol−TMS ether V and benzoic acid (BA). Both aliphatic and aryl enals 1 reacted smoothly with enaminones and β-enamino esters 2, affording highly functionalized 1,4-DHPs 3 in high enantioselectivities
Partially Saturated Indeno[1,2-<i>b</i>]indole Derivatives via Deoxygenation
of Heterocyclic α-Hydroxy-<i>N</i>,<i>O</i>-hemiaminals
作者:Hans-Jörg Hemmerling、Guido Reiss
DOI:10.1055/s-0028-1087983
日期:——
A series of 3-aminocyclohex-2-enones were reacted with indane-1,2,3-trione monohydrate (ninhydrin) yielding 4b,9b-dihydroxyindeno[1,2-b]indoles that were deoxygenated to indeno[1,2-b]indoles.
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.
SUBSTITUTED INDENO[1,2-B]INDOLE DERIVATIVES AS NOVEL INHIBITORS OF PROTEIN KINASE CK2 AND THEIR USE AS TUMOR THERAPEUTIC AGENTS, CYTOSTATICS AND DIAGNOSTIC AIDS
申请人:Hemmerling Hans-Jorg
公开号:US20100056599A1
公开(公告)日:2010-03-04
Synthesis of novel substituted indeno[1,2-b]indole derivatives of the type of 5,6,7,8-tetrahydroindeno[1,2-b]indole-9,10-diones and 5H-indeno[1,2-b]indole-6,9,10-triones, which show pronounced inhibition of the human protein kinase CK2, and the use thereof as active ingredients in medicaments and/or drug products in particular for the treatment of neoplastic diseases.
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。