HETEROCYCLIC UREA DERIVATIVES AND METHODS OF USE THEREOF
申请人:CHOY Allison Laura
公开号:US20100317624A1
公开(公告)日:2010-12-16
Compounds of formula (IA) and their pharmaceutically acceptable salts are described. Processes for their preparation, pharmaceutical compositions containing them, their use as medicaments and their use in the treatment of bacterial infections are also described.
3-(Benzo[<i>d</i>]thiazol-2-yl)-4-aminoquinoline derivatives as novel scaffold topoisomerase I inhibitor <i>via</i> DNA intercalation: design, synthesis, and antitumor activities
作者:Jing-Mei Yuan、Nan-Ying Chen、Hao-Ran Liao、Guo-Hai Zhang、Xiao-Juan Li、Zi-Yu Gu、Cheng-Xue Pan、Dong-Liang Mo、Gui-Fa Su
DOI:10.1039/c9nj05846j
日期:——
Twenty-seven 3-(benzo[d]thiazol-2-yl)-4-aminoquinoline derivatives have been designed and synthesized as topoisomerase I inhibitors. The in vitro anti-proliferation evaluation against four human cancer cell lines (MGC-803, HepG-2, T24, and NCI-H460) and one normal cell line (HL-7702) indicated that most of them exhibited potent cytotoxicity. Among them, 5a was identified as the most promising candidate
已经设计并合成了二十七个3-(苯并[ d ]噻唑-2-基)-4-氨基喹啉衍生物作为拓扑异构酶I抑制剂。在体外针对四种人类肿瘤细胞系(MGC-803,人肝癌HepG-2,T24,和NCI-H460)和一个正常细胞系的抗增殖评价(HL-7702)表示,其中大部分表现出强的细胞毒性。其中,5a被认为是最有前途的候选物,其IC 50值低至约2.20±0.14,并被选作进一步探索。光谱分析和琼脂糖凝胶电泳分析表明5a可以与DNA相互作用并强烈抑制拓扑异构酶I(Topo I)。进一步筛选化合物5b的Topo I活性,5c,5e,5f,5h,5i,5j,5l和5n表明一些化合物可能与5a具有完全不同的细胞毒性。分子建模研究证实5a采用独特的模式与DNA和Topo I相互作用。其他分子机理研究表明,用5a处理MGC-803细胞可诱导S期阻滞,上调促凋亡蛋白,下调抗凋亡蛋白,激活caspase-3,随后诱导
Fluorine walk: The impact of fluorine in quinolone amides on their activity against African sleeping sickness
Human AfricanTrypanosomiasis, also known as African sleeping sickness, is caused by the parasitic protozoa of the genus Trypanosoma. If there is no pharmacological intervention, the parasites can cross the blood-brain barrier (BBB), inevitably leading to death of the patients. Previous investigation identified the quinolone amide GHQ168 as a promising lead compound having a nanomolar activity against
[EN] HETEROCYCLIC UREA DERIVATIVES FOR THE TREATMENT OF BACTERIAL INFECTIONS<br/>[FR] DÉRIVÉS HÉTÉROCYCLIQUES D'URÉE POUR LE TRAITEMENT D'INFECTIONS BACTÉRIENNES
申请人:ASTRAZENECA AB
公开号:WO2009147433A1
公开(公告)日:2009-12-10
Compounds of formula (I) and their pharmaceutically acceptable salts are described. Processes for their preparation, pharmaceutical compositions containing them, their use as medicaments and their use in the treatment of bacterial infections are also described.
Defined concatenated α6α1β3γ2 GABAA receptor constructs reveal dual action of pyrazoloquinolinone allosteric modulators
作者:X. Simeone、M.T. Iorio、D.C.B. Siebert、S. Rehman、M. Schnürch、M.D. Mihovilovic、M. Ernst
DOI:10.1016/j.bmc.2019.06.006
日期:2019.7
Pyrazoloquinolinones (PQs) have been extensively studied as modulators of GABAA receptors with different subunit composition, exerting modulatory effects by binding at α+/β- interfaces of GABAA receptors. PQs with a substituent in position R7 have been reported to preferentially modulate α6- subunit containing GABAA receptors which are mostly expressed in the cerebellum but were also found in the olfactory