3-乙烯基吲哚对吡啶并[2,3- a ]-,吡啶并[4,3- a ]-和噻吩并[2,3- a ]-咔唑的光化学电环化:设计,合成,DNA结合和抗肿瘤细胞毒性
摘要:
在DNA配体的设计和合成过程中,合成了一些新的戊烯退火的咔唑。作为铅结构,考虑了插入的四环体系吡啶并[2,3- a ]-和吡啶并[4,3- a ]-咔唑,在一种情况下考虑了噻吩并[2,3- a ]-咔唑。将二烷基氨基酰胺链引入平面发色体系,目的是产生较小的凹槽结合性能。通过NCI抗肿瘤筛选检查了某些化合物的细胞毒性。此外,进行了生物物理和生化研究,以便获得有关此新系列分子的DNA结合特性和对DNA相关功能酶的抑制作用的一些信息。
Photocatalytic Dehydrogenative 6π‐Photocyclisation of Indole Derivatives via Successive Energy Transfer
摘要:
Herein, a successive energy transfer (sEnT) strategy to enable a dehydrogenative 6π‐photocyclisation, without the need for an external oxidant is reported, in which the energetically unfavourable dehydrogenation is driven by energy transfer. The valuable applicability of this method was demonstrated by the scaffold hopping of indole containing bioactive molecules, as well as by the succinct synthesis of naturally occurring tetracyclic furocarbazole alkaloids. Moreover, experimental and computational studies were conducted to elucidate the reaction mechanism.
Synthesis, molecular docking and biological evaluation of 2-(thiophen-2-yl)-1H-indoles as potent HIV-1 non-nucleoside reverse transcriptase inhibitors
作者:Marwa El-Hussieny、Naglaa F. El-Sayed、Ewies F. Ewies、Nabila M. Ibrahim、Mohamed R.H. Mahran、Marwa A. Fouad
DOI:10.1016/j.bioorg.2019.103521
日期:2020.1
was obtained upon refluxing aldehyde 1 with the Lawesson's reagent (LR, 6a) or with the Japanese reagent (JR, 6b) in dry toluene. Upon evaluation of HIV-1ReverseTranscriptase enzyme inhibition, compound 8b (IC50 = 2.93 nM) exhibited the superior HIV-1 RT inhibition and its potency was about 3-folds that of Efavirenz (IC50 = 6.03 nM). Also, compounds 9a (IC50 = 4.09 nM) and 12 (IC50 = 3.54 nM) showed