Chelation of specific metal ions imparts coplanarity and fluorescence in two imidazo[1,2-a]pyridine derivatives: Potential chemosensors for detection of metal ions in aqueous and biosamples
interacting metal ions. Other trivalent metal ions (including Bi3+ and In3+) and common divalent metal ions (including Hg2+ and Cd2+) fail to form any complex with 1 or 2, and they do not interfere in the detection of Zn2+, Al3+, Fe3+ or Cr3+ ions. Noninterference of other metal ions renders 1 and 2 suitable for the detection of fungal cells contaminated with Zn2+, Al3+, Fe3+ or Cr3+ ions.
N-Fused Imidazoles As Novel Anticancer Agents That Inhibit Catalytic Activity of Topoisomerase IIα and Induce Apoptosis in G1/S Phase
作者:Ashish T. Baviskar、Chetna Madaan、Ranjan Preet、Purusottam Mohapatra、Vaibhav Jain、Amit Agarwal、Sankar K. Guchhait、Chanakya N. Kundu、Uttam C. Banerjee、Prasad V. Bharatam
DOI:10.1021/jm200235u
日期:2011.7.28
substituents exhibited potent inhibition of catalytic activity of hTopoIIα while not showing DNA intercalation. Molecular docking studies and molecular dynamics (MD) simulation analysis, ATPase-kinetics and ATP-dependent plasmid relaxation assay revealed the catalytic mode of inhibition of the title compounds plausibly by blocking the ATP-binding site. N-Fused aminoimidazoles showed potent anticancer activities
A facile I<sub>2</sub>-catalyzed synthesis of imidazo[1,2-a]pyridines via sp<sup>3</sup> C–H functionalization of azaarenes and evaluation of anticancer activity
作者:Geeta Sai Mani、Siddiq Pasha Shaik、Yellaiah Tangella、Swarna Bale、Chandraiah Godugu、Ahmed Kamal
DOI:10.1039/c7ob01384a
日期:——
A facile and efficient metal-free, one-pot, three component synthetic protocol has been developed for the synthesis of medicinally important substituted imidazo[1,2-a]pyridines via the iodine-catalysed oxidative amination of benzylic C–H bonds of azaarenes with 2-aminoazines and condensation with isocyanides. The presented methodology offers the advantages of wide substrate scope, moderate reaction
已经开发了一种简便有效的无金属,一锅,三组分合成方案,用于通过碘催化的氮杂芳烃苄基CH键的氧化胺化反应,合成具有医学上重要意义的取代的咪唑并[1,2- a ]吡啶。与2-氨基嗪并与异氰酸酯缩合。所提出的方法具有以下优点:底物范围宽,反应条件温和,环境友好,清洁和简单,具有较高原子经济性的方案,且产率较高。筛选合成的化合物在选定的人类癌细胞系中的抗癌活性。化合物4a,4b,4c,4i,7a,图7b和7m的IC 50值范围从4.88±0.28到14.55±0.74μM。
synthesis of quaternary α-aminosuccinimides in toluene medium involving 2-phenylimidazo[1, 2-a]pyridine in a one-pot reaction promoted by FerricNitrate at 120 °C. The protocol presented herein, is for the first time, via a novel transformation where FerricNitrate promotes imidazo[1,2-a]pyridine structural metamorphosis to the title compound quaternary succinimides. High compatibility, easy work-up