Fused imidazoles as potential chemical scaffolds for inhibition of heat shock protein 70 and induction of apoptosis. Synthesis and biological evaluation of phenanthro[9,10-d]imidazoles and imidazo[4,5-f][1,10]phenanthrolines
作者:Alpa Patel、Swee Y. Sharp、Katelan Hall、William Lewis、Malcolm F. G. Stevens、Paul Workman、Christopher J. Moody
DOI:10.1039/c6ob00471g
日期:——
Fused imidazoles inhibit growth of human cancer cell lines, and the Hsp70 pathway in cells, and induce apoptosis.
Modular Assembly of Ring-Fused and π-Extended Phenanthroimidazoles via C–H Activation and Alkyne Annulation
作者:Liyao Zheng、Ruimao Hua
DOI:10.1021/jo500401n
日期:2014.5.2
practical and modular assembly of diverse ring-fused phenanthroimidazoles, including an unusual rearrangement product using aryl-alkyl asymmetric alkyne and a thiophenefused product which could serve as a Fe3+ fluorescent probe. The feasibility of the one-pot synthesis and ruthenium(II)-catalyzed versions of this reaction was also verified.
Ruthenium(II)-Catalyzed Sequential C–H/N–H Alkene Annulation Cascade of Phenanthroimidazoles: Synthesis and Photophysical Studies
作者:Rekha Thakur、Kamaldeep Paul
DOI:10.1021/acs.joc.3c02947
日期:2024.5.3
We report ruthenium(II)-catalyzed sequential C–H/N–H alkenylation cascade of phenanthroimidazole and alkenes to form novel phenanthroimidazoisoindol acrylates via dual C–Hactivation and aza-Michael reaction. The two nitrogen atoms of the imidazole ring act as directing groups for regioselective dual sequential ortho C–Hactivation. These polycyclic N-heterocycles were evaluated for their photophysical
An efficient one-pot approach for the preparation of 2,4,5-trisubstituted phenanthroimidazole derivatives is described. The three-component reaction between 9,10-phenanthraquinone, benzaldehyde derivatives, and ammonium acetate proceeds in the presence of SBA-Pr-SO3H as a nanoporous solid acid catalyst in short reaction times and good to excellent yields.