7-pentyl-3,5-diazabicyclo[4.2.0]oct-7-ene-2,4-dione

1-[(4-nitrophenyl)methyl]pyrimidine-2,4-dione

5-(morpholin-4-ylmethyl)-1H-pyrimidine-2,4-dione

1-(3-oxobutyl)pyrimidine-2,4-dione

1-(2-bromoethyl)pyrimidine-2,4-dione