I2/TBHP promoted oxidative C–N bond formation at room temperature: Divergent access of 2-substituted benzimidazoles involving ring distortion
作者:Moumita Saha、Asish R. Das
DOI:10.1016/j.tetlet.2018.05.028
日期:2018.6
A new ‘one pot’ tandemsynthesis of 2-substituted benzimidazoles has been developed from 2-aminobenzyl alcohol/2-aminobenzamide and different coupling partners (nitriles, aldehydes and 1,3-diketones) via iodine and TBHP promoted oxidative ringcontraction. The present strategy involves sequential C–N bond formation, cyclization, subsequent ringcontraction and dehydrogenation to afford various medicinally
The present invention relates to novel bipyridyl derivatives of formula (I) and to the use of such compounds in which the inhibition, regulation and/or modulation of signal transduction by ATP consuming proteins like kinases plays a role, particularly to inhibitors of TGF-beta receptor kinases, and to the use of such compounds for the treatment of kinase-induced diseases, in particular for the treatment of tumors.
Compounds disclosed herein including compounds of formula I′:
and salts thereof are provided. Pharmaceutical compositions comprising compounds disclosed herein, processes for preparing compounds disclosed herein, intermediates useful for preparing compounds disclosed herein and therapeutic methods for treating an HIV infection using compounds disclosed herein are also provided.
Aiming at obtaining new coppercomplexes with good cytotoxicity against cancer cells, triphenylphosphine (TPP) was introduced to obtain insight into the influence of the co-ligands. In this paper, two coppercomplexes, Cu(2-pbmq)(CH3OH)Br2 (1) and [Cu(2-pbmq)(TPP)Br]2 (2) were designed, synthesized, and characterized by X-ray crystallography, 2-((2-(pyrazin-2-yl)-1H-benzo[d]imidazol-1-yl)methyl))quinolone
为了获得对癌细胞具有良好细胞毒性的新型铜配合物,引入了三苯膦(TPP)以深入了解共配体的影响。本文设计,合成并表征了两种铜配合物Cu(2-pbmq)(CH 3 OH)Br 2(1)和[Cu(2-pbmq)(TPP)Br] 2(2)。射线晶体学研究2-(((2-(吡嗪-2-基)-1H-苯并[ d ]咪唑-1-基)甲基))喹诺酮(2-pbmq),以研究TPP基团对苯丙氨酸的影响金属配合物的抗癌活性。尽管TPP基团的存在降低了复合物与DNA相互作用的强度,但在体外含有TPP的复合物的抗癌活性和细胞摄取显着优于缺乏TPP的对应物。对更有效的细胞毒性复合物2的详细研究表明,其在细胞核中积累,使细胞周期停滞在G0-G1期,导致线粒体功能障碍,涉及潜在的同时线粒体膜塌陷,细胞ATP水平耗竭和Ca 2+泄漏,最终诱导细胞凋亡。总之,TPP基团的引入增强了复合物的生物活性和细胞毒性。
PYRIDONE DERIVATIVE HAVING TETRAHYDROPYRANYLMETHYL GROUP
申请人:DAIICHI SANKYO COMPANY, LIMITED
公开号:US20170183329A1
公开(公告)日:2017-06-29
The present disclosure provides novel compounds or salts thereof, or crystals of the compounds or the salts, which inhibit Axl and are useful in the treatment of a disease caused by hyperfunction of Axl, the treatment of a disease associated with hyperfunction of Axl, and/or the treatment of a disease involving hyperfunction of Axl.
The present disclosure provides pyridone derivatives having a tetrahydropyranylmethyl group represented by the following formula (I) having various substituents, or salts thereof, or crystals of the compounds or the salts, wherein R
1
, R
2
, R
3
, R
4
, R
5
, W, X, Y, and Z are each as defined in the specification: