2-Aminopyrimidine as a novel scaffold for biofilm modulation
作者:Erick A. Lindsey、Roberta J. Worthington、Cristina Alcaraz、Christian Melander
DOI:10.1039/c2ob06871k
日期:——
An efficient synthetic route to a series of substituted 2-aminopyrimidine (2-AP) derivatives has been developed. Subsequent biofilm screening has allowed comparison between the biological activity of these new derivatives and that of the 2-aminoimidazole class of anti-biofilm compounds. Several derivatives displayed the ability to modulate bacterial biofilm formation, exhibiting greater activity against Gram-positive strains than Gram-negative strains. Additionally some 2-aminopyrmidines were able to suppress MRSA resistance to conventional antibiotics.
A unique recyclable Pd catalyst (‘SiO2’-NH2-Pd) for Suzuki-Miyauracoupling reaction of azaheteroaryl halides is developed. The catalytic system is working under mild aqueous condition with low Pd loading and without the use of phosphine ligand. The plausible mechanism is proposed based on the formation of undesired symmetrical biaryl from the coupling reaction of azaheteroaryl chlorides due to the