Several N-containing fused heterocycles including 6-arylvinyl-dihydropyrimidin-2(1H)-ones(1),1 2H-pyrrolo[3,4-d]pyrimidine-2,5,7(3H,6H)-triones(2),2 1H-pyrrolo[3,4-b]quinoline-1,3(2H)-diones(3),2 1H-p
Among the transition metal catalyzed direct C-H bond arylation between aryl(pseudo)halides and heteroaromatic compounds,the direct C-H bond arylation of benzo[b]furans seems to be a great challenge,us
The use of β-lactam antibiotics is compromised by drug-resistant bacteria,which employ the β-lactamase to catalyze hydrolysis of β-lactam antibiotics [1].