Ring-substituted 11-oxo-11H-indeno[1,2-b]quinoline-6-carboxamides with similar patterns of cytotoxicity to the dual topo I/II inhibitor DACA
摘要:
A series of ring-substituted analogues of the topoisomerase inhibitor 11-oxo-11H-indeno[1,2-b]quinoline-6-carboxamides was prepared and evaluated. The compounds were prepared by Pfitzinger reaction of the appropriate isatin-7-carboxylic acids and 1-indanones, followed by selective thermal decarboxylation of the resulting tetracyclic diacids, subsequent oxidation of the methylene group with alkaline permanganate under carefully controlled conditions, and 1,1'-carbonyldiimidazole-induced amidation. The compounds were evaluated in a panel of cell lines in culture. The largest increases in cytotoxicity (five to tenfold) were shown by 4-substituted analogues, with the 4-Cl derivative having an IC50 of 8 nM against the Lewis lung carcinoma. (C) 1999 Elsevier Science Ltd. All rights reserved.
Synthesis and Antitumor Properties of <i>N</i>-[2-(Dimethylamino)ethyl]carboxamide Derivatives of Fused Tetracyclic Quinolines and Quinoxalines: A New Class of Putative Topoisomerase Inhibitors
作者:Leslie W. Deady、Anthony J. Kaye、Graeme J. Finlay、Bruce C. Baguley、William A. Denny
DOI:10.1021/jm970044r
日期:1997.6.1
does not result primarily from inhibition of topo II. The quinoxaline analogues had more varied IC50 values, being on average less cytotoxic than the quinoline derivatives, but appeared to have a similar mode of action. Overall, this newclass of compounds appear to be mixed topo I/II inhibitors, up to 3-fold more cytotoxic than DACA in the human leukemia cell lines studied, with in vivo activity in
制备了一系列四环喹啉和喹喔啉羧酰胺,并在一系列鼠类人肿瘤细胞系中评估了它们的细胞毒性。多数喹啉衍生物是通过适应Pfitzinger合成,随后进行热脱羧并使用氯甲酸异丁酯通过混合酸酐法与N,N-二甲基乙二胺偶联而制备的。喹啉类似物显示出与已知的三环a啶-4-羧酰胺混合的topoI / II抑制剂DACA相似的细胞毒性,其中噻吩和茚满类似物最具活性。他们显示出对Jurkat人白血病topo II耐药株JLA和JLC的效力几乎没有降低,表明它们的细胞毒性并非主要是由于对topo II的抑制所致。喹喔啉类似物的IC50值变化更大,与喹啉衍生物相比,其平均细胞毒性要低,但似乎具有相似的作用方式。总的来说,这类新化合物似乎是混合的topo I / II抑制剂,在研究的人类白血病细胞系中的细胞毒性比DACA高三倍,在结肠38的体内活性与DACA和阿霉素相当。
Ring-substituted 11-oxo-11H-indeno[1,2-b]quinoline-6-carboxamides with similar patterns of cytotoxicity to the dual topo I/II inhibitor DACA
作者:Leslie W. Deady、José Desneves、Anthony J. Kaye、Michelle Thompson、Graeme J. Finlay、Bruce C. Baguley、William A. Denny
DOI:10.1016/s0968-0896(99)00231-x
日期:1999.12
A series of ring-substituted analogues of the topoisomerase inhibitor 11-oxo-11H-indeno[1,2-b]quinoline-6-carboxamides was prepared and evaluated. The compounds were prepared by Pfitzinger reaction of the appropriate isatin-7-carboxylic acids and 1-indanones, followed by selective thermal decarboxylation of the resulting tetracyclic diacids, subsequent oxidation of the methylene group with alkaline permanganate under carefully controlled conditions, and 1,1'-carbonyldiimidazole-induced amidation. The compounds were evaluated in a panel of cell lines in culture. The largest increases in cytotoxicity (five to tenfold) were shown by 4-substituted analogues, with the 4-Cl derivative having an IC50 of 8 nM against the Lewis lung carcinoma. (C) 1999 Elsevier Science Ltd. All rights reserved.