Allyl-Nickel Catalysis Enables Carbonyl Dehydrogenation and Oxidative Cycloalkenylation of Ketones
作者:David Huang、Suzanne M. Szewczyk、Pengpeng Zhang、Timothy R. Newhouse
DOI:10.1021/jacs.9b02552
日期:2019.4.10
of carbonyl compounds using allyl-nickel catalysis. This development overcomes several limitations of previously reported allyl-palladium-catalyzed oxidation, and is further leveraged for the development of an oxidative cycloalkenylation reaction that provides access to bicycloalkenones with fused, bridged, and spirocyclic ring systems using unactivated ketone and alkene precursors.
Synthesis of new verapamil analogues and their evaluation in combination with rifampicin against Mycobacterium tuberculosis and molecular docking studies in the binding site of efflux protein Rv1258c
作者:Kawaljit Singh、Malkeet Kumar、Elumalai Pavadai、Krupa Naran、Digby F. Warner、Peter G. Ruminski、Kelly Chibale
DOI:10.1016/j.bmcl.2014.05.022
日期:2014.7
analogues were synthesized and their inhibitory activities againstMycobacteriumtuberculosis H37Rv determined in vitro alone and in combination with rifampicin (RIF). Some analogues showed comparable activity to verapamil and exhibited better synergies with RIF. Molecular dockingstudies of the binding sites of Rv1258c, a M. tuberculosis efflux protein previously implicated in intrinsic resistance