Synthesis and Anticancer Activity of Simplified Indenoisoquinoline Topoisomerase I Inhibitors Lacking Substituents on the Aromatic Rings
作者:Muthukaman Nagarajan、Andrew Morrell、Brian C. Fort、Marintha Rae Meckley、Smitha Antony、Glenda Kohlhagen、Yves Pommier、Mark Cushman
DOI:10.1021/jm040025z
日期:2004.11.1
where it is involved in a hydrogen bonding interaction with the side chain guanidine group of Arg364. The DNA cleavage patterns observed in the presence of topoisomerase I and various indenoisoquinolines were similar, although significant differences were detected. There were also variations in the DNA cleavage pattern seen with camptothecin vs the indenoisoquinolines, which indicates that these two
A method has been developed that relies on a two-step, one-pot condensation between phthalide and 2-carboxybenzaldehydes to provide benz[a]indeno[ 1,2-h]pyran-5,11-diones in a multi-gram fashion. Treatment of these compounds with a primary amine allows rapid access to various N-substituted indenoisoquinolines, whose in vitro anticancer activity and topoisomerase I inhibition have been evaluated. (C) 2006 Elsevier Ltd. All rights reserved.
Iridium(<scp>iii</scp>) complexes as mitochondrial topoisomerase inhibitors against cisplatin-resistant cancer cells
Iridium(iii) complexes, Ir1–Ir2, were developed to act as poisons of mitochondrial topoisomerase and achieve an effective therapeutic outcome for the therapy of cisplatin-resistant tumour cells.
Targeting the <i>c-Kit</i> Promoter G-quadruplexes with 6-Substituted Indenoisoquinolines
作者:Mallesham Bejugam、Mekala Gunaratnam、Sebastian Müller、Deborah A. Sanders、Sven Sewitz、Jonathan A. Fletcher、Stephen Neidle、Shankar Balasubramanian
DOI:10.1021/ml100062z
日期:2010.10.14
properties, and preliminary biological evaluation of 6-substitutedindenoisoquinolines as a new class of G-quadruplex stabilizing small molecule ligands. We have synthesized 6-substitutedindenoisoquinolines 1a−e in two steps from commercially available starting materials with excellent yields. The G-quadruplex stabilization potential of indenoisoquinolines 1a−e was evaluated by fluorescence resonance energy
在此,我们展示了 6-取代茚并异喹啉作为一类新型 G-四链体稳定小分子配体的设计、合成、生物物理特性和初步生物学评价。我们从市售的起始原料分两步合成了 6-取代的茚并异喹啉1a - e ,产率很高。茚并异喹啉1a - e的 G-四链体稳定电位通过荧光共振能量转移熔融分析评估,表明茚并异喹啉对各种 G-四链体 DNA 结构具有高度的稳定性。Indenoisoquinolines 在 GIST882 患者来源的胃肠道间质瘤细胞系中显示出对细胞生长的有效抑制,同时抑制c-Kit转录和 KIT 癌蛋白水平。