Abstract A simple, general, and highly efficient Betti base ligand has been developed for copper-catalyzed Ullmann coupling of phenol with arylhalides without the protection of an inert atmosphere. The reaction proceeds smoothly in the presence of K2CO3 as the base and dimethylsulfoxide as the solvent. The catalyst was reused several times with no evident loss of catalytic activity and is environmentally
Synthesis, In silico studies and In vitro evaluation for antioxidant and antibacterial properties of diarylmethylamines: A novel class of structurally simple and highly potent pharmacophore
作者:Sujit Mahato、Anuma Singh、Latha Rangan、Chandan K. Jana
DOI:10.1016/j.ejps.2016.03.004
日期:2016.6
A series of novel diarylmethylamines were synthesized via simple three component condensation reaction. In vitro antibacterial activity of the synthesized compounds was assessed against Gram-positive and Gram-negative bacteria. Compound 1f containing phenyl and N-methyl piperazine moiety was found to be potent against both pathogenic bacteria with MIC value of 31 mu g/mL. Diarylmethylamine 1l containing sesamol and N-methyl piperazine units was found to be the most effective against Gram-positive bacteria with MIC value of 15 mu g/mL. The compound leads to the damage of the bacterial cell membrane which was demonstrated by flow cytometry (FC) and field emission scanning electron microscopy (FESEM). Radical scavenging activity of compounds 1l and 1m was found out to be comparable with that of standard antioxidant BHT. Further, in silico studies were carried out to calculate the physico-chemical parameter of the synthesized compounds. (C) 2016 Elsevier B.V. All rights reserved.