(+/-)-N-{3-[4-amino-2-oxo-1-(tetrahydro-2-thienyl)-1,2-dihydropyrimidin-5-yl]prop-2-yn-1-yl}cyclobutanesulfonamide

(±)-3-(1-{3-[4-amino-2-oxo-1-(tetrahydrothien-2-yl)-1,2-dihydropyrimidin-5-yl]prop-2-yn-1-yl}-2-cyclohexyl-1H-imidazol-4-yl)propanenitrile

(+/-)-N-{3-[4-amino-2-oxo-1-(tetrahydro-2-thienyl)-1,2-dihydropyrimidin-5-yl]prop-2-yn-1-yl}hexane-1-sulfonamide

(±)-1-{3-[4-amino-2-oxo-1-(tetrahydrothien-2-yl)-1,2-dihydropyrimidin-5-yl]prop-2-yn-1-yl}-2-cyclohexyl-1H-benzimidazole-5-carbonitrile

(±)-5-{3-[2-cyclohexyl-4-(2,2,2-trifluoro-1-methoxyethyl)-1H-imidazol-1-yl]prop-1-yn-1-yl}-1-(tetrahydrothien-2-yl)cytosine