2,3-dibromo-1-pyridin-3-yl-3-thiophen-2-ylpropan-1-one

4-pyridin-3-yl-6-thiophen-2-yl-5,6-dihydro-1H-pyrimidine-2-thione

1-(5-pyridin-3-yl-3-thiophen-2-yl-3,4-dihydropyrazol-2-yl)ethanone